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Finding the Fourth Proportional to 36,143.40, 54,207.90 and 17,423.40

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Solution

The fourth proportional to 36,143.40, 54,207.90 and 17,423.40 is: 26,131.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,143.40 : 54,207.90 = 17,423.40 : x
  2. Step 2: Convert to fraction form
    36,143.40/54,207.90 = 17,423.40/x
  3. Step 3: Cross multiply
    36,143.40x = 54,207.90 × 17,423.40
  4. Step 4: Simplify right side
    36,143.40x = 944,485,924.86
  5. Step 5: Solve for x
    x = 944,485,924.86/36,143.40
  6. Step 6: Final answer
    x = 26,131.63

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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.