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Finding the Fourth Proportional to 8,881.99, 12,257.81 and 5,747.29

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Solution

The fourth proportional to 8,881.99, 12,257.81 and 5,747.29 is: 7,931.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,881.99 : 12,257.81 = 5,747.29 : x
  2. Step 2: Convert to fraction form
    8,881.99/12,257.81 = 5,747.29/x
  3. Step 3: Cross multiply
    8,881.99x = 12,257.81 × 5,747.29
  4. Step 4: Simplify right side
    8,881.99x = 70,449,188.83
  5. Step 5: Solve for x
    x = 70,449,188.83/8,881.99
  6. Step 6: Final answer
    x = 7,931.69

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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.