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Finding the Fourth Proportional to 52,985.92, 73,121.92 and 29,113.20

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Solution

The fourth proportional to 52,985.92, 73,121.92 and 29,113.20 is: 40,176.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,985.92 : 73,121.92 = 29,113.20 : x
  2. Step 2: Convert to fraction form
    52,985.92/73,121.92 = 29,113.20/x
  3. Step 3: Cross multiply
    52,985.92x = 73,121.92 × 29,113.20
  4. Step 4: Simplify right side
    52,985.92x = 2,128,813,081.34
  5. Step 5: Solve for x
    x = 2,128,813,081.34/52,985.92
  6. Step 6: Final answer
    x = 40,176.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.