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Finding the Fourth Proportional to 8,956.95, 12,357.77 and 5,371.17

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Solution

The fourth proportional to 8,956.95, 12,357.77 and 5,371.17 is: 7,410.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,956.95 : 12,357.77 = 5,371.17 : x
  2. Step 2: Convert to fraction form
    8,956.95/12,357.77 = 5,371.17/x
  3. Step 3: Cross multiply
    8,956.95x = 12,357.77 × 5,371.17
  4. Step 4: Simplify right side
    8,956.95x = 66,375,656.64
  5. Step 5: Solve for x
    x = 66,375,656.64/8,956.95
  6. Step 6: Final answer
    x = 7,410.52

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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.