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Finding the Fourth Proportional to 11,145.52, 15,381.12 and 8,007.58

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Solution

The fourth proportional to 11,145.52, 15,381.12 and 8,007.58 is: 11,050.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,145.52 : 15,381.12 = 8,007.58 : x
  2. Step 2: Convert to fraction form
    11,145.52/15,381.12 = 8,007.58/x
  3. Step 3: Cross multiply
    11,145.52x = 15,381.12 × 8,007.58
  4. Step 4: Simplify right side
    11,145.52x = 123,165,548.89
  5. Step 5: Solve for x
    x = 123,165,548.89/11,145.52
  6. Step 6: Final answer
    x = 11,050.68

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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.