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Finding the Fourth Proportional to 64,866.18, 89,514.14 and 36,571.90

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Solution

The fourth proportional to 64,866.18, 89,514.14 and 36,571.90 is: 50,468.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,866.18 : 89,514.14 = 36,571.90 : x
  2. Step 2: Convert to fraction form
    64,866.18/89,514.14 = 36,571.90/x
  3. Step 3: Cross multiply
    64,866.18x = 89,514.14 × 36,571.90
  4. Step 4: Simplify right side
    64,866.18x = 3,273,702,176.67
  5. Step 5: Solve for x
    x = 3,273,702,176.67/64,866.18
  6. Step 6: Final answer
    x = 50,468.55

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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.