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Finding the Fourth Proportional to 61,460.61, 92,221.10 and 22,020.90

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Solution

The fourth proportional to 61,460.61, 92,221.10 and 22,020.90 is: 33,042.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,460.61 : 92,221.10 = 22,020.90 : x
  2. Step 2: Convert to fraction form
    61,460.61/92,221.10 = 22,020.90/x
  3. Step 3: Cross multiply
    61,460.61x = 92,221.10 × 22,020.90
  4. Step 4: Simplify right side
    61,460.61x = 2,030,791,510.89
  5. Step 5: Solve for x
    x = 2,030,791,510.89/61,460.61
  6. Step 6: Final answer
    x = 33,042.16

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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.