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Finding the Fourth Proportional to 53,663.92, 74,060.88 and 29,795.20

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Solution

The fourth proportional to 53,663.92, 74,060.88 and 29,795.20 is: 41,119.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,663.92 : 74,060.88 = 29,795.20 : x
  2. Step 2: Convert to fraction form
    53,663.92/74,060.88 = 29,795.20/x
  3. Step 3: Cross multiply
    53,663.92x = 74,060.88 × 29,795.20
  4. Step 4: Simplify right side
    53,663.92x = 2,206,658,731.78
  5. Step 5: Solve for x
    x = 2,206,658,731.78/53,663.92
  6. Step 6: Final answer
    x = 41,119.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.