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Finding the Fourth Proportional to 18,601.47, 27,902.18 and 4,750.47

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Solution

The fourth proportional to 18,601.47, 27,902.18 and 4,750.47 is: 7,125.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,601.47 : 27,902.18 = 4,750.47 : x
  2. Step 2: Convert to fraction form
    18,601.47/27,902.18 = 4,750.47/x
  3. Step 3: Cross multiply
    18,601.47x = 27,902.18 × 4,750.47
  4. Step 4: Simplify right side
    18,601.47x = 132,548,480.90
  5. Step 5: Solve for x
    x = 132,548,480.90/18,601.47
  6. Step 6: Final answer
    x = 7,125.70

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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.