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Finding the Fourth Proportional to 8,799.60, 13,190.46 and 2,951.40

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Solution

The fourth proportional to 8,799.60, 13,190.46 and 2,951.40 is: 4,424.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,799.60 : 13,190.46 = 2,951.40 : x
  2. Step 2: Convert to fraction form
    8,799.60/13,190.46 = 2,951.40/x
  3. Step 3: Cross multiply
    8,799.60x = 13,190.46 × 2,951.40
  4. Step 4: Simplify right side
    8,799.60x = 38,930,323.64
  5. Step 5: Solve for x
    x = 38,930,323.64/8,799.60
  6. Step 6: Final answer
    x = 4,424.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.