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Finding the Fourth Proportional to 12,445.62, 17,174.96 and 6,856.62

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Solution

The fourth proportional to 12,445.62, 17,174.96 and 6,856.62 is: 9,462.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,445.62 : 17,174.96 = 6,856.62 : x
  2. Step 2: Convert to fraction form
    12,445.62/17,174.96 = 6,856.62/x
  3. Step 3: Cross multiply
    12,445.62x = 17,174.96 × 6,856.62
  4. Step 4: Simplify right side
    12,445.62x = 117,762,174.24
  5. Step 5: Solve for x
    x = 117,762,174.24/12,445.62
  6. Step 6: Final answer
    x = 9,462.14

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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.