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Finding the Fourth Proportional to 42,407.70, 63,611.55 and 29,966.10

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Solution

The fourth proportional to 42,407.70, 63,611.55 and 29,966.10 is: 44,949.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,407.70 : 63,611.55 = 29,966.10 : x
  2. Step 2: Convert to fraction form
    42,407.70/63,611.55 = 29,966.10/x
  3. Step 3: Cross multiply
    42,407.70x = 63,611.55 × 29,966.10
  4. Step 4: Simplify right side
    42,407.70x = 1,906,190,068.46
  5. Step 5: Solve for x
    x = 1,906,190,068.46/42,407.70
  6. Step 6: Final answer
    x = 44,949.15

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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.