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Finding the Fourth Proportional to 67,287.64, 92,184.48 and 64,765.28

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Solution

The fourth proportional to 67,287.64, 92,184.48 and 64,765.28 is: 88,728.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,287.64 : 92,184.48 = 64,765.28 : x
  2. Step 2: Convert to fraction form
    67,287.64/92,184.48 = 64,765.28/x
  3. Step 3: Cross multiply
    67,287.64x = 92,184.48 × 64,765.28
  4. Step 4: Simplify right side
    67,287.64x = 5,970,353,658.85
  5. Step 5: Solve for x
    x = 5,970,353,658.85/67,287.64
  6. Step 6: Final answer
    x = 88,728.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.