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Finding the Fourth Proportional to 8,744.32, 12,065.02 and 5,343.12

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Solution

The fourth proportional to 8,744.32, 12,065.02 and 5,343.12 is: 7,372.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,744.32 : 12,065.02 = 5,343.12 : x
  2. Step 2: Convert to fraction form
    8,744.32/12,065.02 = 5,343.12/x
  3. Step 3: Cross multiply
    8,744.32x = 12,065.02 × 5,343.12
  4. Step 4: Simplify right side
    8,744.32x = 64,464,849.66
  5. Step 5: Solve for x
    x = 64,464,849.66/8,744.32
  6. Step 6: Final answer
    x = 7,372.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.