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Finding the Fourth Proportional to 67,392.48, 92,982.96 and 43,520.16

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Solution

The fourth proportional to 67,392.48, 92,982.96 and 43,520.16 is: 60,045.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,392.48 : 92,982.96 = 43,520.16 : x
  2. Step 2: Convert to fraction form
    67,392.48/92,982.96 = 43,520.16/x
  3. Step 3: Cross multiply
    67,392.48x = 92,982.96 × 43,520.16
  4. Step 4: Simplify right side
    67,392.48x = 4,046,633,296.47
  5. Step 5: Solve for x
    x = 4,046,633,296.47/67,392.48
  6. Step 6: Final answer
    x = 60,045.77

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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.