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Finding the Fourth Proportional to 7,291.64, 10,063.42 and 4,147.22

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Solution

The fourth proportional to 7,291.64, 10,063.42 and 4,147.22 is: 5,723.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,291.64 : 10,063.42 = 4,147.22 : x
  2. Step 2: Convert to fraction form
    7,291.64/10,063.42 = 4,147.22/x
  3. Step 3: Cross multiply
    7,291.64x = 10,063.42 × 4,147.22
  4. Step 4: Simplify right side
    7,291.64x = 41,735,156.01
  5. Step 5: Solve for x
    x = 41,735,156.01/7,291.64
  6. Step 6: Final answer
    x = 5,723.70

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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.