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Finding the Fourth Proportional to 61,282.65, 84,565.45 and 34,419.92

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Solution

The fourth proportional to 61,282.65, 84,565.45 and 34,419.92 is: 47,496.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,282.65 : 84,565.45 = 34,419.92 : x
  2. Step 2: Convert to fraction form
    61,282.65/84,565.45 = 34,419.92/x
  3. Step 3: Cross multiply
    61,282.65x = 84,565.45 × 34,419.92
  4. Step 4: Simplify right side
    61,282.65x = 2,910,735,643.96
  5. Step 5: Solve for x
    x = 2,910,735,643.96/61,282.65
  6. Step 6: Final answer
    x = 47,496.89

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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.