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Finding the Fourth Proportional to 54,663.52, 75,409.88 and 31,988.48

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Solution

The fourth proportional to 54,663.52, 75,409.88 and 31,988.48 is: 44,129.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,663.52 : 75,409.88 = 31,988.48 : x
  2. Step 2: Convert to fraction form
    54,663.52/75,409.88 = 31,988.48/x
  3. Step 3: Cross multiply
    54,663.52x = 75,409.88 × 31,988.48
  4. Step 4: Simplify right side
    54,663.52x = 2,412,247,438.18
  5. Step 5: Solve for x
    x = 2,412,247,438.18/54,663.52
  6. Step 6: Final answer
    x = 44,129.02

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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.