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Finding the Fourth Proportional to 25,302.28, 37,959.90 and 9,721.12

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Solution

The fourth proportional to 25,302.28, 37,959.90 and 9,721.12 is: 14,584.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,302.28 : 37,959.90 = 9,721.12 : x
  2. Step 2: Convert to fraction form
    25,302.28/37,959.90 = 9,721.12/x
  3. Step 3: Cross multiply
    25,302.28x = 37,959.90 × 9,721.12
  4. Step 4: Simplify right side
    25,302.28x = 369,012,743.09
  5. Step 5: Solve for x
    x = 369,012,743.09/25,302.28
  6. Step 6: Final answer
    x = 14,584.17

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.