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Finding the Fourth Proportional to 69,928.56, 96,503.64 and 38,098.48

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Solution

The fourth proportional to 69,928.56, 96,503.64 and 38,098.48 is: 52,577.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,928.56 : 96,503.64 = 38,098.48 : x
  2. Step 2: Convert to fraction form
    69,928.56/96,503.64 = 38,098.48/x
  3. Step 3: Cross multiply
    69,928.56x = 96,503.64 × 38,098.48
  4. Step 4: Simplify right side
    69,928.56x = 3,676,641,998.47
  5. Step 5: Solve for x
    x = 3,676,641,998.47/69,928.56
  6. Step 6: Final answer
    x = 52,577.12

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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.