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Finding the Fourth Proportional to 12,646.17, 17,452.68 and 6,982.01

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Solution

The fourth proportional to 12,646.17, 17,452.68 and 6,982.01 is: 9,635.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,646.17 : 17,452.68 = 6,982.01 : x
  2. Step 2: Convert to fraction form
    12,646.17/17,452.68 = 6,982.01/x
  3. Step 3: Cross multiply
    12,646.17x = 17,452.68 × 6,982.01
  4. Step 4: Simplify right side
    12,646.17x = 121,854,742.66
  5. Step 5: Solve for x
    x = 121,854,742.66/12,646.17
  6. Step 6: Final answer
    x = 9,635.70

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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.