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Finding the Fourth Proportional to 5,471.87, 8,207.98 and 1,774.13

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Solution

The fourth proportional to 5,471.87, 8,207.98 and 1,774.13 is: 2,661.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,471.87 : 8,207.98 = 1,774.13 : x
  2. Step 2: Convert to fraction form
    5,471.87/8,207.98 = 1,774.13/x
  3. Step 3: Cross multiply
    5,471.87x = 8,207.98 × 1,774.13
  4. Step 4: Simplify right side
    5,471.87x = 14,561,978.08
  5. Step 5: Solve for x
    x = 14,561,978.08/5,471.87
  6. Step 6: Final answer
    x = 2,661.25

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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.