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Finding the Fourth Proportional to 11,649.79, 17,474.60 and 6,971.10

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Solution

The fourth proportional to 11,649.79, 17,474.60 and 6,971.10 is: 10,456.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,649.79 : 17,474.60 = 6,971.10 : x
  2. Step 2: Convert to fraction form
    11,649.79/17,474.60 = 6,971.10/x
  3. Step 3: Cross multiply
    11,649.79x = 17,474.60 × 6,971.10
  4. Step 4: Simplify right side
    11,649.79x = 121,817,135.96
  5. Step 5: Solve for x
    x = 121,817,135.96/11,649.79
  6. Step 6: Final answer
    x = 10,456.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.