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Finding the Fourth Proportional to 69,035.52, 103,531.52 and 22,278.72

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Solution

The fourth proportional to 69,035.52, 103,531.52 and 22,278.72 is: 33,411.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,035.52 : 103,531.52 = 22,278.72 : x
  2. Step 2: Convert to fraction form
    69,035.52/103,531.52 = 22,278.72/x
  3. Step 3: Cross multiply
    69,035.52x = 103,531.52 × 22,278.72
  4. Step 4: Simplify right side
    69,035.52x = 2,306,549,745.25
  5. Step 5: Solve for x
    x = 2,306,549,745.25/69,035.52
  6. Step 6: Final answer
    x = 33,411.06

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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.