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Finding the Fourth Proportional to 11,555.16, 17,320.84 and 8,775.92

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Solution

The fourth proportional to 11,555.16, 17,320.84 and 8,775.92 is: 13,154.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,555.16 : 17,320.84 = 8,775.92 : x
  2. Step 2: Convert to fraction form
    11,555.16/17,320.84 = 8,775.92/x
  3. Step 3: Cross multiply
    11,555.16x = 17,320.84 × 8,775.92
  4. Step 4: Simplify right side
    11,555.16x = 152,006,306.17
  5. Step 5: Solve for x
    x = 152,006,306.17/11,555.16
  6. Step 6: Final answer
    x = 13,154.84

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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.