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Finding the Fourth Proportional to 35,867.40, 53,793.90 and 17,147.40

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Solution

The fourth proportional to 35,867.40, 53,793.90 and 17,147.40 is: 25,717.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,867.40 : 53,793.90 = 17,147.40 : x
  2. Step 2: Convert to fraction form
    35,867.40/53,793.90 = 17,147.40/x
  3. Step 3: Cross multiply
    35,867.40x = 53,793.90 × 17,147.40
  4. Step 4: Simplify right side
    35,867.40x = 922,425,520.86
  5. Step 5: Solve for x
    x = 922,425,520.86/35,867.40
  6. Step 6: Final answer
    x = 25,717.66

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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.