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Finding the Fourth Proportional to 61,693.78, 92,539.86 and 14,947.06

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Solution

The fourth proportional to 61,693.78, 92,539.86 and 14,947.06 is: 22,420.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,693.78 : 92,539.86 = 14,947.06 : x
  2. Step 2: Convert to fraction form
    61,693.78/92,539.86 = 14,947.06/x
  3. Step 3: Cross multiply
    61,693.78x = 92,539.86 × 14,947.06
  4. Step 4: Simplify right side
    61,693.78x = 1,383,198,839.81
  5. Step 5: Solve for x
    x = 1,383,198,839.81/61,693.78
  6. Step 6: Final answer
    x = 22,420.39

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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.