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Finding the Fourth Proportional to 71,753.96, 99,025.20 and 39,922.93

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Solution

The fourth proportional to 71,753.96, 99,025.20 and 39,922.93 is: 55,096.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,753.96 : 99,025.20 = 39,922.93 : x
  2. Step 2: Convert to fraction form
    71,753.96/99,025.20 = 39,922.93/x
  3. Step 3: Cross multiply
    71,753.96x = 99,025.20 × 39,922.93
  4. Step 4: Simplify right side
    71,753.96x = 3,953,376,127.84
  5. Step 5: Solve for x
    x = 3,953,376,127.84/71,753.96
  6. Step 6: Final answer
    x = 55,096.28

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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.