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Finding the Fourth Proportional to 6,168.78, 8,507.53 and 4,372.70

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Solution

The fourth proportional to 6,168.78, 8,507.53 and 4,372.70 is: 6,030.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,168.78 : 8,507.53 = 4,372.70 : x
  2. Step 2: Convert to fraction form
    6,168.78/8,507.53 = 4,372.70/x
  3. Step 3: Cross multiply
    6,168.78x = 8,507.53 × 4,372.70
  4. Step 4: Simplify right side
    6,168.78x = 37,200,854.57
  5. Step 5: Solve for x
    x = 37,200,854.57/6,168.78
  6. Step 6: Final answer
    x = 6,030.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.