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Finding the Fourth Proportional to 1,753.12, 2,419.28 and 967.17

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Solution

The fourth proportional to 1,753.12, 2,419.28 and 967.17 is: 1,334.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,753.12 : 2,419.28 = 967.17 : x
  2. Step 2: Convert to fraction form
    1,753.12/2,419.28 = 967.17/x
  3. Step 3: Cross multiply
    1,753.12x = 2,419.28 × 967.17
  4. Step 4: Simplify right side
    1,753.12x = 2,339,855.04
  5. Step 5: Solve for x
    x = 2,339,855.04/1,753.12
  6. Step 6: Final answer
    x = 1,334.68

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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.