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Finding the Fourth Proportional to 27,290.53, 37,658.91 and 15,351.57

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Solution

The fourth proportional to 27,290.53, 37,658.91 and 15,351.57 is: 21,184.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,290.53 : 37,658.91 = 15,351.57 : x
  2. Step 2: Convert to fraction form
    27,290.53/37,658.91 = 15,351.57/x
  3. Step 3: Cross multiply
    27,290.53x = 37,658.91 × 15,351.57
  4. Step 4: Simplify right side
    27,290.53x = 578,123,309.34
  5. Step 5: Solve for x
    x = 578,123,309.34/27,290.53
  6. Step 6: Final answer
    x = 21,184.03

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