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Finding the Fourth Proportional to 60,427.89, 90,641.87 and 22,979.31

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Solution

The fourth proportional to 60,427.89, 90,641.87 and 22,979.31 is: 34,468.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,427.89 : 90,641.87 = 22,979.31 : x
  2. Step 2: Convert to fraction form
    60,427.89/90,641.87 = 22,979.31/x
  3. Step 3: Cross multiply
    60,427.89x = 90,641.87 × 22,979.31
  4. Step 4: Simplify right side
    60,427.89x = 2,082,887,514.81
  5. Step 5: Solve for x
    x = 2,082,887,514.81/60,427.89
  6. Step 6: Final answer
    x = 34,468.98

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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.