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Finding the Fourth Proportional to 29,381.79, 40,542.79 and 17,282.82

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Solution

The fourth proportional to 29,381.79, 40,542.79 and 17,282.82 is: 23,847.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,381.79 : 40,542.79 = 17,282.82 : x
  2. Step 2: Convert to fraction form
    29,381.79/40,542.79 = 17,282.82/x
  3. Step 3: Cross multiply
    29,381.79x = 40,542.79 × 17,282.82
  4. Step 4: Simplify right side
    29,381.79x = 700,693,741.87
  5. Step 5: Solve for x
    x = 700,693,741.87/29,381.79
  6. Step 6: Final answer
    x = 23,847.89

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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.