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Finding the Fourth Proportional to 18,001.25, 24,813.43 and 12,326.18

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Solution

The fourth proportional to 18,001.25, 24,813.43 and 12,326.18 is: 16,990.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,001.25 : 24,813.43 = 12,326.18 : x
  2. Step 2: Convert to fraction form
    18,001.25/24,813.43 = 12,326.18/x
  3. Step 3: Cross multiply
    18,001.25x = 24,813.43 × 12,326.18
  4. Step 4: Simplify right side
    18,001.25x = 305,854,632.38
  5. Step 5: Solve for x
    x = 305,854,632.38/18,001.25
  6. Step 6: Final answer
    x = 16,990.74

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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.