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Finding the Fourth Proportional to 8,845.61, 12,224.42 and 7,249.70

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Solution

The fourth proportional to 8,845.61, 12,224.42 and 7,249.70 is: 10,018.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,845.61 : 12,224.42 = 7,249.70 : x
  2. Step 2: Convert to fraction form
    8,845.61/12,224.42 = 7,249.70/x
  3. Step 3: Cross multiply
    8,845.61x = 12,224.42 × 7,249.70
  4. Step 4: Simplify right side
    8,845.61x = 88,623,399.17
  5. Step 5: Solve for x
    x = 88,623,399.17/8,845.61
  6. Step 6: Final answer
    x = 10,018.92

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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.