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Finding the Fourth Proportional to 5,856.79, 8,785.15 and 1,474.25

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Solution

The fourth proportional to 5,856.79, 8,785.15 and 1,474.25 is: 2,211.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,856.79 : 8,785.15 = 1,474.25 : x
  2. Step 2: Convert to fraction form
    5,856.79/8,785.15 = 1,474.25/x
  3. Step 3: Cross multiply
    5,856.79x = 8,785.15 × 1,474.25
  4. Step 4: Simplify right side
    5,856.79x = 12,951,468.07
  5. Step 5: Solve for x
    x = 12,951,468.07/5,856.79
  6. Step 6: Final answer
    x = 2,211.36

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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.