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Finding the Fourth Proportional to 62,248.38, 93,430.89 and 28,991.40

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Solution

The fourth proportional to 62,248.38, 93,430.89 and 28,991.40 is: 43,514.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,248.38 : 93,430.89 = 28,991.40 : x
  2. Step 2: Convert to fraction form
    62,248.38/93,430.89 = 28,991.40/x
  3. Step 3: Cross multiply
    62,248.38x = 93,430.89 × 28,991.40
  4. Step 4: Simplify right side
    62,248.38x = 2,708,692,304.35
  5. Step 5: Solve for x
    x = 2,708,692,304.35/62,248.38
  6. Step 6: Final answer
    x = 43,514.26

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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.