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Finding the Fourth Proportional to 8,951.76, 13,337.69 and 8,448.75

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Solution

The fourth proportional to 8,951.76, 13,337.69 and 8,448.75 is: 12,588.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,951.76 : 13,337.69 = 8,448.75 : x
  2. Step 2: Convert to fraction form
    8,951.76/13,337.69 = 8,448.75/x
  3. Step 3: Cross multiply
    8,951.76x = 13,337.69 × 8,448.75
  4. Step 4: Simplify right side
    8,951.76x = 112,686,766.14
  5. Step 5: Solve for x
    x = 112,686,766.14/8,951.76
  6. Step 6: Final answer
    x = 12,588.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.