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Finding the Fourth Proportional to 29,697.98, 40,979.32 and 17,756.96

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Solution

The fourth proportional to 29,697.98, 40,979.32 and 17,756.96 is: 24,502.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,697.98 : 40,979.32 = 17,756.96 : x
  2. Step 2: Convert to fraction form
    29,697.98/40,979.32 = 17,756.96/x
  3. Step 3: Cross multiply
    29,697.98x = 40,979.32 × 17,756.96
  4. Step 4: Simplify right side
    29,697.98x = 727,667,896.78
  5. Step 5: Solve for x
    x = 727,667,896.78/29,697.98
  6. Step 6: Final answer
    x = 24,502.27

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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.