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Finding the Fourth Proportional to 64,899.92, 89,559.88 and 36,605.20

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Solution

The fourth proportional to 64,899.92, 89,559.88 and 36,605.20 is: 50,514.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,899.92 : 89,559.88 = 36,605.20 : x
  2. Step 2: Convert to fraction form
    64,899.92/89,559.88 = 36,605.20/x
  3. Step 3: Cross multiply
    64,899.92x = 89,559.88 × 36,605.20
  4. Step 4: Simplify right side
    64,899.92x = 3,278,357,319.38
  5. Step 5: Solve for x
    x = 3,278,357,319.38/64,899.92
  6. Step 6: Final answer
    x = 50,514.04

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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.