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Finding the Fourth Proportional to 8,876.72, 12,249.95 and 4,897.97

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Solution

The fourth proportional to 8,876.72, 12,249.95 and 4,897.97 is: 6,759.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,876.72 : 12,249.95 = 4,897.97 : x
  2. Step 2: Convert to fraction form
    8,876.72/12,249.95 = 4,897.97/x
  3. Step 3: Cross multiply
    8,876.72x = 12,249.95 × 4,897.97
  4. Step 4: Simplify right side
    8,876.72x = 59,999,887.60
  5. Step 5: Solve for x
    x = 59,999,887.60/8,876.72
  6. Step 6: Final answer
    x = 6,759.24

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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.