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Finding the Fourth Proportional to 7,064.86, 9,751.28 and 4,082.43

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Solution

The fourth proportional to 7,064.86, 9,751.28 and 4,082.43 is: 5,634.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,064.86 : 9,751.28 = 4,082.43 : x
  2. Step 2: Convert to fraction form
    7,064.86/9,751.28 = 4,082.43/x
  3. Step 3: Cross multiply
    7,064.86x = 9,751.28 × 4,082.43
  4. Step 4: Simplify right side
    7,064.86x = 39,808,918.01
  5. Step 5: Solve for x
    x = 39,808,918.01/7,064.86
  6. Step 6: Final answer
    x = 5,634.78

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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.