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Finding the Fourth Proportional to 64,272.96, 88,691.76 and 35,974.80

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Solution

The fourth proportional to 64,272.96, 88,691.76 and 35,974.80 is: 49,642.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,272.96 : 88,691.76 = 35,974.80 : x
  2. Step 2: Convert to fraction form
    64,272.96/88,691.76 = 35,974.80/x
  3. Step 3: Cross multiply
    64,272.96x = 88,691.76 × 35,974.80
  4. Step 4: Simplify right side
    64,272.96x = 3,190,668,327.65
  5. Step 5: Solve for x
    x = 3,190,668,327.65/64,272.96
  6. Step 6: Final answer
    x = 49,642.47

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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.