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Finding the Fourth Proportional to 8,593.16, 12,886.70 and 2,748.20

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Solution

The fourth proportional to 8,593.16, 12,886.70 and 2,748.20 is: 4,121.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,593.16 : 12,886.70 = 2,748.20 : x
  2. Step 2: Convert to fraction form
    8,593.16/12,886.70 = 2,748.20/x
  3. Step 3: Cross multiply
    8,593.16x = 12,886.70 × 2,748.20
  4. Step 4: Simplify right side
    8,593.16x = 35,415,150.77
  5. Step 5: Solve for x
    x = 35,415,150.77/8,593.16
  6. Step 6: Final answer
    x = 4,121.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.