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Finding the Fourth Proportional to 8,887.82, 12,265.70 and 5,352.17

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Solution

The fourth proportional to 8,887.82, 12,265.70 and 5,352.17 is: 7,386.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,887.82 : 12,265.70 = 5,352.17 : x
  2. Step 2: Convert to fraction form
    8,887.82/12,265.70 = 5,352.17/x
  3. Step 3: Cross multiply
    8,887.82x = 12,265.70 × 5,352.17
  4. Step 4: Simplify right side
    8,887.82x = 65,648,023.48
  5. Step 5: Solve for x
    x = 65,648,023.48/8,887.82
  6. Step 6: Final answer
    x = 7,386.29

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1.5x scale

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.