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Finding the Fourth Proportional to 52,960.60, 79,729.45 and 45,728.92

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Solution

The fourth proportional to 52,960.60, 79,729.45 and 45,728.92 is: 68,842.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,960.60 : 79,729.45 = 45,728.92 : x
  2. Step 2: Convert to fraction form
    52,960.60/79,729.45 = 45,728.92/x
  3. Step 3: Cross multiply
    52,960.60x = 79,729.45 × 45,728.92
  4. Step 4: Simplify right side
    52,960.60x = 3,645,941,640.69
  5. Step 5: Solve for x
    x = 3,645,941,640.69/52,960.60
  6. Step 6: Final answer
    x = 68,842.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.