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Finding the Fourth Proportional to 47,434.60, 71,151.90 and 17,859.07

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Solution

The fourth proportional to 47,434.60, 71,151.90 and 17,859.07 is: 26,788.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,434.60 : 71,151.90 = 17,859.07 : x
  2. Step 2: Convert to fraction form
    47,434.60/71,151.90 = 17,859.07/x
  3. Step 3: Cross multiply
    47,434.60x = 71,151.90 × 17,859.07
  4. Step 4: Simplify right side
    47,434.60x = 1,270,706,762.73
  5. Step 5: Solve for x
    x = 1,270,706,762.73/47,434.60
  6. Step 6: Final answer
    x = 26,788.61

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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.