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Finding the Fourth Proportional to 18,074.59, 26,988.86 and 15,948.49

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Solution

The fourth proportional to 18,074.59, 26,988.86 and 15,948.49 is: 23,814.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,074.59 : 26,988.86 = 15,948.49 : x
  2. Step 2: Convert to fraction form
    18,074.59/26,988.86 = 15,948.49/x
  3. Step 3: Cross multiply
    18,074.59x = 26,988.86 × 15,948.49
  4. Step 4: Simplify right side
    18,074.59x = 430,431,563.82
  5. Step 5: Solve for x
    x = 430,431,563.82/18,074.59
  6. Step 6: Final answer
    x = 23,814.19

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.