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Finding the Fourth Proportional to 8,895.74, 12,277.12 and 5,358.88

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Solution

The fourth proportional to 8,895.74, 12,277.12 and 5,358.88 is: 7,395.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,895.74 : 12,277.12 = 5,358.88 : x
  2. Step 2: Convert to fraction form
    8,895.74/12,277.12 = 5,358.88/x
  3. Step 3: Cross multiply
    8,895.74x = 12,277.12 × 5,358.88
  4. Step 4: Simplify right side
    8,895.74x = 65,791,551.44
  5. Step 5: Solve for x
    x = 65,791,551.44/8,895.74
  6. Step 6: Final answer
    x = 7,395.85

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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.