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Finding the Fourth Proportional to 6,962.28, 9,606.78 and 4,167.78

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Solution

The fourth proportional to 6,962.28, 9,606.78 and 4,167.78 is: 5,750.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,962.28 : 9,606.78 = 4,167.78 : x
  2. Step 2: Convert to fraction form
    6,962.28/9,606.78 = 4,167.78/x
  3. Step 3: Cross multiply
    6,962.28x = 9,606.78 × 4,167.78
  4. Step 4: Simplify right side
    6,962.28x = 40,038,945.55
  5. Step 5: Solve for x
    x = 40,038,945.55/6,962.28
  6. Step 6: Final answer
    x = 5,750.84

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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.