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Finding the Fourth Proportional to 9,944.16, 14,920.56 and 8,851.20

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Solution

The fourth proportional to 9,944.16, 14,920.56 and 8,851.20 is: 13,280.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,944.16 : 14,920.56 = 8,851.20 : x
  2. Step 2: Convert to fraction form
    9,944.16/14,920.56 = 8,851.20/x
  3. Step 3: Cross multiply
    9,944.16x = 14,920.56 × 8,851.20
  4. Step 4: Simplify right side
    9,944.16x = 132,064,860.67
  5. Step 5: Solve for x
    x = 132,064,860.67/9,944.16
  6. Step 6: Final answer
    x = 13,280.65

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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.