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Finding the Fourth Proportional to 9,820.60, 14,706.60 and 6,305.20

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Solution

The fourth proportional to 9,820.60, 14,706.60 and 6,305.20 is: 9,442.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,820.60 : 14,706.60 = 6,305.20 : x
  2. Step 2: Convert to fraction form
    9,820.60/14,706.60 = 6,305.20/x
  3. Step 3: Cross multiply
    9,820.60x = 14,706.60 × 6,305.20
  4. Step 4: Simplify right side
    9,820.60x = 92,728,054.32
  5. Step 5: Solve for x
    x = 92,728,054.32/9,820.60
  6. Step 6: Final answer
    x = 9,442.20

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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.