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Finding the Fourth Proportional to 61,635.84, 92,281.92 and 39,394.32

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Solution

The fourth proportional to 61,635.84, 92,281.92 and 39,394.32 is: 58,981.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,635.84 : 92,281.92 = 39,394.32 : x
  2. Step 2: Convert to fraction form
    61,635.84/92,281.92 = 39,394.32/x
  3. Step 3: Cross multiply
    61,635.84x = 92,281.92 × 39,394.32
  4. Step 4: Simplify right side
    61,635.84x = 3,635,383,486.69
  5. Step 5: Solve for x
    x = 3,635,383,486.69/61,635.84
  6. Step 6: Final answer
    x = 58,981.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.