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Finding the Fourth Proportional to 29,659.86, 40,926.57 and 17,720.67

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Solution

The fourth proportional to 29,659.86, 40,926.57 and 17,720.67 is: 24,452.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,659.86 : 40,926.57 = 17,720.67 : x
  2. Step 2: Convert to fraction form
    29,659.86/40,926.57 = 17,720.67/x
  3. Step 3: Cross multiply
    29,659.86x = 40,926.57 × 17,720.67
  4. Step 4: Simplify right side
    29,659.86x = 725,246,241.20
  5. Step 5: Solve for x
    x = 725,246,241.20/29,659.86
  6. Step 6: Final answer
    x = 24,452.11

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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.