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Finding the Fourth Proportional to 67,467.52, 93,115.20 and 65,402.56

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Solution

The fourth proportional to 67,467.52, 93,115.20 and 65,402.56 is: 90,265.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,467.52 : 93,115.20 = 65,402.56 : x
  2. Step 2: Convert to fraction form
    67,467.52/93,115.20 = 65,402.56/x
  3. Step 3: Cross multiply
    67,467.52x = 93,115.20 × 65,402.56
  4. Step 4: Simplify right side
    67,467.52x = 6,089,972,454.91
  5. Step 5: Solve for x
    x = 6,089,972,454.91/67,467.52
  6. Step 6: Final answer
    x = 90,265.25

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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.