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Finding the Fourth Proportional to 61,462.68, 84,639.96 and 53,392.65

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Solution

The fourth proportional to 61,462.68, 84,639.96 and 53,392.65 is: 73,526.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,462.68 : 84,639.96 = 53,392.65 : x
  2. Step 2: Convert to fraction form
    61,462.68/84,639.96 = 53,392.65/x
  3. Step 3: Cross multiply
    61,462.68x = 84,639.96 × 53,392.65
  4. Step 4: Simplify right side
    61,462.68x = 4,519,151,337.09
  5. Step 5: Solve for x
    x = 4,519,151,337.09/61,462.68
  6. Step 6: Final answer
    x = 73,526.76

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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.