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Finding the Fourth Proportional to 8,777.13, 13,224.90 and 7,251.30

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Solution

The fourth proportional to 8,777.13, 13,224.90 and 7,251.30 is: 10,925.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,777.13 : 13,224.90 = 7,251.30 : x
  2. Step 2: Convert to fraction form
    8,777.13/13,224.90 = 7,251.30/x
  3. Step 3: Cross multiply
    8,777.13x = 13,224.90 × 7,251.30
  4. Step 4: Simplify right side
    8,777.13x = 95,897,717.37
  5. Step 5: Solve for x
    x = 95,897,717.37/8,777.13
  6. Step 6: Final answer
    x = 10,925.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.