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Finding the Fourth Proportional to 29,392.50, 40,561.68 and 16,817.28

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Solution

The fourth proportional to 29,392.50, 40,561.68 and 16,817.28 is: 23,207.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,392.50 : 40,561.68 = 16,817.28 : x
  2. Step 2: Convert to fraction form
    29,392.50/40,561.68 = 16,817.28/x
  3. Step 3: Cross multiply
    29,392.50x = 40,561.68 × 16,817.28
  4. Step 4: Simplify right side
    29,392.50x = 682,137,129.83
  5. Step 5: Solve for x
    x = 682,137,129.83/29,392.50
  6. Step 6: Final answer
    x = 23,207.86

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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.