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Finding the Fourth Proportional to 9,931.46, 14,910.22 and 6,659.20

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Solution

The fourth proportional to 9,931.46, 14,910.22 and 6,659.20 is: 9,997.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,931.46 : 14,910.22 = 6,659.20 : x
  2. Step 2: Convert to fraction form
    9,931.46/14,910.22 = 6,659.20/x
  3. Step 3: Cross multiply
    9,931.46x = 14,910.22 × 6,659.20
  4. Step 4: Simplify right side
    9,931.46x = 99,290,061.39
  5. Step 5: Solve for x
    x = 99,290,061.39/9,931.46
  6. Step 6: Final answer
    x = 9,997.53

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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.