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Finding the Fourth Proportional to 52,644.71, 72,654.69 and 28,774.97

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Solution

The fourth proportional to 52,644.71, 72,654.69 and 28,774.97 is: 39,712.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,644.71 : 72,654.69 = 28,774.97 : x
  2. Step 2: Convert to fraction form
    52,644.71/72,654.69 = 28,774.97/x
  3. Step 3: Cross multiply
    52,644.71x = 72,654.69 × 28,774.97
  4. Step 4: Simplify right side
    52,644.71x = 2,090,636,161.84
  5. Step 5: Solve for x
    x = 2,090,636,161.84/52,644.71
  6. Step 6: Final answer
    x = 39,712.18

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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.