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Finding the Fourth Proportional to 2,372.70, 3,559.05 and 2,117.55

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Solution

The fourth proportional to 2,372.70, 3,559.05 and 2,117.55 is: 3,176.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,372.70 : 3,559.05 = 2,117.55 : x
  2. Step 2: Convert to fraction form
    2,372.70/3,559.05 = 2,117.55/x
  3. Step 3: Cross multiply
    2,372.70x = 3,559.05 × 2,117.55
  4. Step 4: Simplify right side
    2,372.70x = 7,536,466.33
  5. Step 5: Solve for x
    x = 7,536,466.33/2,372.70
  6. Step 6: Final answer
    x = 3,176.33

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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.