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Finding the Fourth Proportional to 9,983.60, 14,956.68 and 8,350.64

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Solution

The fourth proportional to 9,983.60, 14,956.68 and 8,350.64 is: 12,510.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,983.60 : 14,956.68 = 8,350.64 : x
  2. Step 2: Convert to fraction form
    9,983.60/14,956.68 = 8,350.64/x
  3. Step 3: Cross multiply
    9,983.60x = 14,956.68 × 8,350.64
  4. Step 4: Simplify right side
    9,983.60x = 124,897,850.28
  5. Step 5: Solve for x
    x = 124,897,850.28/9,983.60
  6. Step 6: Final answer
    x = 12,510.30

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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.