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Finding the Fourth Proportional to 5,789.68, 8,672.40 and 4,800.15

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Solution

The fourth proportional to 5,789.68, 8,672.40 and 4,800.15 is: 7,190.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,789.68 : 8,672.40 = 4,800.15 : x
  2. Step 2: Convert to fraction form
    5,789.68/8,672.40 = 4,800.15/x
  3. Step 3: Cross multiply
    5,789.68x = 8,672.40 × 4,800.15
  4. Step 4: Simplify right side
    5,789.68x = 41,628,820.86
  5. Step 5: Solve for x
    x = 41,628,820.86/5,789.68
  6. Step 6: Final answer
    x = 7,190.18

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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.