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Finding the Fourth Proportional to 18,773.61, 25,904.71 and 10,814.55

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Solution

The fourth proportional to 18,773.61, 25,904.71 and 10,814.55 is: 14,922.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,773.61 : 25,904.71 = 10,814.55 : x
  2. Step 2: Convert to fraction form
    18,773.61/25,904.71 = 10,814.55/x
  3. Step 3: Cross multiply
    18,773.61x = 25,904.71 × 10,814.55
  4. Step 4: Simplify right side
    18,773.61x = 280,147,781.53
  5. Step 5: Solve for x
    x = 280,147,781.53/18,773.61
  6. Step 6: Final answer
    x = 14,922.42

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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.