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Finding the Fourth Proportional to 61,957.31, 92,928.06 and 19,841.76

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Solution

The fourth proportional to 61,957.31, 92,928.06 and 19,841.76 is: 29,760.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,957.31 : 92,928.06 = 19,841.76 : x
  2. Step 2: Convert to fraction form
    61,957.31/92,928.06 = 19,841.76/x
  3. Step 3: Cross multiply
    61,957.31x = 92,928.06 × 19,841.76
  4. Step 4: Simplify right side
    61,957.31x = 1,843,856,263.79
  5. Step 5: Solve for x
    x = 1,843,856,263.79/61,957.31
  6. Step 6: Final answer
    x = 29,760.11

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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.