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Finding the Fourth Proportional to 8,866.76, 12,236.16 and 5,332

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Solution

The fourth proportional to 8,866.76, 12,236.16 and 5,332 is: 7,358.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,866.76 : 12,236.16 = 5,332 : x
  2. Step 2: Convert to fraction form
    8,866.76/12,236.16 = 5,332/x
  3. Step 3: Cross multiply
    8,866.76x = 12,236.16 × 5,332
  4. Step 4: Simplify right side
    8,866.76x = 65,243,205.12
  5. Step 5: Solve for x
    x = 65,243,205.12/8,866.76
  6. Step 6: Final answer
    x = 7,358.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.