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Finding the Fourth Proportional to 5,264.16, 7,891.20 and 4,447.68

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Solution

The fourth proportional to 5,264.16, 7,891.20 and 4,447.68 is: 6,667.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,264.16 : 7,891.20 = 4,447.68 : x
  2. Step 2: Convert to fraction form
    5,264.16/7,891.20 = 4,447.68/x
  3. Step 3: Cross multiply
    5,264.16x = 7,891.20 × 4,447.68
  4. Step 4: Simplify right side
    5,264.16x = 35,097,532.42
  5. Step 5: Solve for x
    x = 35,097,532.42/5,264.16
  6. Step 6: Final answer
    x = 6,667.26

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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.