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Finding the Fourth Proportional to 18,404.53, 25,398.87 and 10,339.61

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Solution

The fourth proportional to 18,404.53, 25,398.87 and 10,339.61 is: 14,269.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,404.53 : 25,398.87 = 10,339.61 : x
  2. Step 2: Convert to fraction form
    18,404.53/25,398.87 = 10,339.61/x
  3. Step 3: Cross multiply
    18,404.53x = 25,398.87 × 10,339.61
  4. Step 4: Simplify right side
    18,404.53x = 262,614,410.24
  5. Step 5: Solve for x
    x = 262,614,410.24/18,404.53
  6. Step 6: Final answer
    x = 14,269.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.