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Finding the Fourth Proportional to 2,461.60, 3,691.68 and 922.24

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Solution

The fourth proportional to 2,461.60, 3,691.68 and 922.24 is: 1,383.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,461.60 : 3,691.68 = 922.24 : x
  2. Step 2: Convert to fraction form
    2,461.60/3,691.68 = 922.24/x
  3. Step 3: Cross multiply
    2,461.60x = 3,691.68 × 922.24
  4. Step 4: Simplify right side
    2,461.60x = 3,404,614.96
  5. Step 5: Solve for x
    x = 3,404,614.96/2,461.60
  6. Step 6: Final answer
    x = 1,383.09

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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.