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Finding the Fourth Proportional to 8,790.58, 13,160.76 and 8,101.54

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Solution

The fourth proportional to 8,790.58, 13,160.76 and 8,101.54 is: 12,129.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,790.58 : 13,160.76 = 8,101.54 : x
  2. Step 2: Convert to fraction form
    8,790.58/13,160.76 = 8,101.54/x
  3. Step 3: Cross multiply
    8,790.58x = 13,160.76 × 8,101.54
  4. Step 4: Simplify right side
    8,790.58x = 106,622,423.57
  5. Step 5: Solve for x
    x = 106,622,423.57/8,790.58
  6. Step 6: Final answer
    x = 12,129.17

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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.