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Finding the Fourth Proportional to 8,262,080.20, 12,393,120.30 and 8,262,080.20

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Solution

The fourth proportional to 8,262,080.20, 12,393,120.30 and 8,262,080.20 is: 12,393,120.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,262,080.20 : 12,393,120.30 = 8,262,080.20 : x
  2. Step 2: Convert to fraction form
    8,262,080.20/12,393,120.30 = 8,262,080.20/x
  3. Step 3: Cross multiply
    8,262,080.20x = 12,393,120.30 × 8,262,080.20
  4. Step 4: Simplify right side
    8,262,080.20x = 102,392,953,846,848.06
  5. Step 5: Solve for x
    x = 102,392,953,846,848.06/8,262,080.20
  6. Step 6: Final answer
    x = 12,393,120.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.