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Finding the Fourth Proportional to 8,312.41, 12,473.21 and 3,385.52

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Solution

The fourth proportional to 8,312.41, 12,473.21 and 3,385.52 is: 5,080.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,312.41 : 12,473.21 = 3,385.52 : x
  2. Step 2: Convert to fraction form
    8,312.41/12,473.21 = 3,385.52/x
  3. Step 3: Cross multiply
    8,312.41x = 12,473.21 × 3,385.52
  4. Step 4: Simplify right side
    8,312.41x = 42,228,253.81
  5. Step 5: Solve for x
    x = 42,228,253.81/8,312.41
  6. Step 6: Final answer
    x = 5,080.15

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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.