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Finding the Fourth Proportional to 5,657.78, 8,489.98 and 2,370.60

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Solution

The fourth proportional to 5,657.78, 8,489.98 and 2,370.60 is: 3,557.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,657.78 : 8,489.98 = 2,370.60 : x
  2. Step 2: Convert to fraction form
    5,657.78/8,489.98 = 2,370.60/x
  3. Step 3: Cross multiply
    5,657.78x = 8,489.98 × 2,370.60
  4. Step 4: Simplify right side
    5,657.78x = 20,126,346.59
  5. Step 5: Solve for x
    x = 20,126,346.59/5,657.78
  6. Step 6: Final answer
    x = 3,557.29

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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.