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Finding the Fourth Proportional to 13,925.17, 20,888.44 and 5,158.04

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Solution

The fourth proportional to 13,925.17, 20,888.44 and 5,158.04 is: 7,737.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,925.17 : 20,888.44 = 5,158.04 : x
  2. Step 2: Convert to fraction form
    13,925.17/20,888.44 = 5,158.04/x
  3. Step 3: Cross multiply
    13,925.17x = 20,888.44 × 5,158.04
  4. Step 4: Simplify right side
    13,925.17x = 107,743,320.73
  5. Step 5: Solve for x
    x = 107,743,320.73/13,925.17
  6. Step 6: Final answer
    x = 7,737.31

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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.