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Finding the Fourth Proportional to 69,920.92, 96,487.44 and 38,087.92

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Solution

The fourth proportional to 69,920.92, 96,487.44 and 38,087.92 is: 52,559.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,920.92 : 96,487.44 = 38,087.92 : x
  2. Step 2: Convert to fraction form
    69,920.92/96,487.44 = 38,087.92/x
  3. Step 3: Cross multiply
    69,920.92x = 96,487.44 × 38,087.92
  4. Step 4: Simplify right side
    69,920.92x = 3,675,005,895.72
  5. Step 5: Solve for x
    x = 3,675,005,895.72/69,920.92
  6. Step 6: Final answer
    x = 52,559.46

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1.5x scale

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.