Home / 82,083.47-123,125.23-19,753.97

Finding the Fourth Proportional to 82,083.47, 123,125.23 and 19,753.97

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Solution

The fourth proportional to 82,083.47, 123,125.23 and 19,753.97 is: 29,630.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,083.47 : 123,125.23 = 19,753.97 : x
  2. Step 2: Convert to fraction form
    82,083.47/123,125.23 = 19,753.97/x
  3. Step 3: Cross multiply
    82,083.47x = 123,125.23 × 19,753.97
  4. Step 4: Simplify right side
    82,083.47x = 2,432,212,432.17
  5. Step 5: Solve for x
    x = 2,432,212,432.17/82,083.47
  6. Step 6: Final answer
    x = 29,630.96

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Double scale
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Similar ratio
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1.5x scale

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.