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Finding the Fourth Proportional to 8,796.25, 12,138.87 and 6,560.11

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Solution

The fourth proportional to 8,796.25, 12,138.87 and 6,560.11 is: 9,052.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,796.25 : 12,138.87 = 6,560.11 : x
  2. Step 2: Convert to fraction form
    8,796.25/12,138.87 = 6,560.11/x
  3. Step 3: Cross multiply
    8,796.25x = 12,138.87 × 6,560.11
  4. Step 4: Simplify right side
    8,796.25x = 79,632,322.48
  5. Step 5: Solve for x
    x = 79,632,322.48/8,796.25
  6. Step 6: Final answer
    x = 9,052.99

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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.