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Finding the Fourth Proportional to 63,470.21, 87,585.82 and 36,621.39

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Solution

The fourth proportional to 63,470.21, 87,585.82 and 36,621.39 is: 50,535.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,470.21 : 87,585.82 = 36,621.39 : x
  2. Step 2: Convert to fraction form
    63,470.21/87,585.82 = 36,621.39/x
  3. Step 3: Cross multiply
    63,470.21x = 87,585.82 × 36,621.39
  4. Step 4: Simplify right side
    63,470.21x = 3,207,514,381.14
  5. Step 5: Solve for x
    x = 3,207,514,381.14/63,470.21
  6. Step 6: Final answer
    x = 50,535.74

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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.