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Finding the Fourth Proportional to 1,753.16, 2,419.46 and 967.20

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Solution

The fourth proportional to 1,753.16, 2,419.46 and 967.20 is: 1,334.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,753.16 : 2,419.46 = 967.20 : x
  2. Step 2: Convert to fraction form
    1,753.16/2,419.46 = 967.20/x
  3. Step 3: Cross multiply
    1,753.16x = 2,419.46 × 967.20
  4. Step 4: Simplify right side
    1,753.16x = 2,340,101.71
  5. Step 5: Solve for x
    x = 2,340,101.71/1,753.16
  6. Step 6: Final answer
    x = 1,334.79

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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.