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Finding the Fourth Proportional to 8,251.88, 11,384.85 and 4,895.74

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Solution

The fourth proportional to 8,251.88, 11,384.85 and 4,895.74 is: 6,754.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,251.88 : 11,384.85 = 4,895.74 : x
  2. Step 2: Convert to fraction form
    8,251.88/11,384.85 = 4,895.74/x
  3. Step 3: Cross multiply
    8,251.88x = 11,384.85 × 4,895.74
  4. Step 4: Simplify right side
    8,251.88x = 55,737,298.13
  5. Step 5: Solve for x
    x = 55,737,298.13/8,251.88
  6. Step 6: Final answer
    x = 6,754.50

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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.