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Finding the Fourth Proportional to 18,404.68, 27,603.16 and 5,253.52

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Solution

The fourth proportional to 18,404.68, 27,603.16 and 5,253.52 is: 7,879.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,404.68 : 27,603.16 = 5,253.52 : x
  2. Step 2: Convert to fraction form
    18,404.68/27,603.16 = 5,253.52/x
  3. Step 3: Cross multiply
    18,404.68x = 27,603.16 × 5,253.52
  4. Step 4: Simplify right side
    18,404.68x = 145,013,753.12
  5. Step 5: Solve for x
    x = 145,013,753.12/18,404.68
  6. Step 6: Final answer
    x = 7,879.18

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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.