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Finding the Fourth Proportional to 83,714.10, 125,583.30 and 39,342.30

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Solution

The fourth proportional to 83,714.10, 125,583.30 and 39,342.30 is: 59,019.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,714.10 : 125,583.30 = 39,342.30 : x
  2. Step 2: Convert to fraction form
    83,714.10/125,583.30 = 39,342.30/x
  3. Step 3: Cross multiply
    83,714.10x = 125,583.30 × 39,342.30
  4. Step 4: Simplify right side
    83,714.10x = 4,940,735,863.59
  5. Step 5: Solve for x
    x = 4,940,735,863.59/83,714.10
  6. Step 6: Final answer
    x = 59,019.16

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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.