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Finding the Fourth Proportional to 18,598.46, 27,897.68 and 4,747.46

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Solution

The fourth proportional to 18,598.46, 27,897.68 and 4,747.46 is: 7,121.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,598.46 : 27,897.68 = 4,747.46 : x
  2. Step 2: Convert to fraction form
    18,598.46/27,897.68 = 4,747.46/x
  3. Step 3: Cross multiply
    18,598.46x = 27,897.68 × 4,747.46
  4. Step 4: Simplify right side
    18,598.46x = 132,442,956.67
  5. Step 5: Solve for x
    x = 132,442,956.67/18,598.46
  6. Step 6: Final answer
    x = 7,121.18

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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.