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Finding the Fourth Proportional to 39,753.61, 54,860.63 and 22,757.79

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Solution

The fourth proportional to 39,753.61, 54,860.63 and 22,757.79 is: 31,406.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,753.61 : 54,860.63 = 22,757.79 : x
  2. Step 2: Convert to fraction form
    39,753.61/54,860.63 = 22,757.79/x
  3. Step 3: Cross multiply
    39,753.61x = 54,860.63 × 22,757.79
  4. Step 4: Simplify right side
    39,753.61x = 1,248,506,696.81
  5. Step 5: Solve for x
    x = 1,248,506,696.81/39,753.61
  6. Step 6: Final answer
    x = 31,406.12

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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.