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Finding the Fourth Proportional to 18,998.61, 26,248.59 and 16,195.62

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Solution

The fourth proportional to 18,998.61, 26,248.59 and 16,195.62 is: 22,375.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,998.61 : 26,248.59 = 16,195.62 : x
  2. Step 2: Convert to fraction form
    18,998.61/26,248.59 = 16,195.62/x
  3. Step 3: Cross multiply
    18,998.61x = 26,248.59 × 16,195.62
  4. Step 4: Simplify right side
    18,998.61x = 425,112,189.18
  5. Step 5: Solve for x
    x = 425,112,189.18/18,998.61
  6. Step 6: Final answer
    x = 22,375.96

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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.