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Finding the Fourth Proportional to 70,729.79, 106,028.76 and 48,553.61

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Solution

The fourth proportional to 70,729.79, 106,028.76 and 48,553.61 is: 72,785.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,729.79 : 106,028.76 = 48,553.61 : x
  2. Step 2: Convert to fraction form
    70,729.79/106,028.76 = 48,553.61/x
  3. Step 3: Cross multiply
    70,729.79x = 106,028.76 × 48,553.61
  4. Step 4: Simplify right side
    70,729.79x = 5,148,078,713.76
  5. Step 5: Solve for x
    x = 5,148,078,713.76/70,729.79
  6. Step 6: Final answer
    x = 72,785.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.