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Finding the Fourth Proportional to 67,810.84, 101,704.65 and 17,891.46

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Solution

The fourth proportional to 67,810.84, 101,704.65 and 17,891.46 is: 26,834.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,810.84 : 101,704.65 = 17,891.46 : x
  2. Step 2: Convert to fraction form
    67,810.84/101,704.65 = 17,891.46/x
  3. Step 3: Cross multiply
    67,810.84x = 101,704.65 × 17,891.46
  4. Step 4: Simplify right side
    67,810.84x = 1,819,644,677.29
  5. Step 5: Solve for x
    x = 1,819,644,677.29/67,810.84
  6. Step 6: Final answer
    x = 26,834.13

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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.