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Finding the Fourth Proportional to 48,866.43, 67,442.91 and 30,963.10

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Solution

The fourth proportional to 48,866.43, 67,442.91 and 30,963.10 is: 42,733.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,866.43 : 67,442.91 = 30,963.10 : x
  2. Step 2: Convert to fraction form
    48,866.43/67,442.91 = 30,963.10/x
  3. Step 3: Cross multiply
    48,866.43x = 67,442.91 × 30,963.10
  4. Step 4: Simplify right side
    48,866.43x = 2,088,241,566.62
  5. Step 5: Solve for x
    x = 2,088,241,566.62/48,866.43
  6. Step 6: Final answer
    x = 42,733.66

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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.