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Finding the Fourth Proportional to 12,442.52, 17,169.90 and 6,853.52

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Solution

The fourth proportional to 12,442.52, 17,169.90 and 6,853.52 is: 9,457.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,442.52 : 17,169.90 = 6,853.52 : x
  2. Step 2: Convert to fraction form
    12,442.52/17,169.90 = 6,853.52/x
  3. Step 3: Cross multiply
    12,442.52x = 17,169.90 × 6,853.52
  4. Step 4: Simplify right side
    12,442.52x = 117,674,253.05
  5. Step 5: Solve for x
    x = 117,674,253.05/12,442.52
  6. Step 6: Final answer
    x = 9,457.43

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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.