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Finding the Fourth Proportional to 63,391.48, 87,490.37 and 36,176.40

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Solution

The fourth proportional to 63,391.48, 87,490.37 and 36,176.40 is: 49,929.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,391.48 : 87,490.37 = 36,176.40 : x
  2. Step 2: Convert to fraction form
    63,391.48/87,490.37 = 36,176.40/x
  3. Step 3: Cross multiply
    63,391.48x = 87,490.37 × 36,176.40
  4. Step 4: Simplify right side
    63,391.48x = 3,165,086,711.71
  5. Step 5: Solve for x
    x = 3,165,086,711.71/63,391.48
  6. Step 6: Final answer
    x = 49,929.22

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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.