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Finding the Fourth Proportional to 67,668.68, 101,509.01 and 17,748.61

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Solution

The fourth proportional to 67,668.68, 101,509.01 and 17,748.61 is: 26,624.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,668.68 : 101,509.01 = 17,748.61 : x
  2. Step 2: Convert to fraction form
    67,668.68/101,509.01 = 17,748.61/x
  3. Step 3: Cross multiply
    67,668.68x = 101,509.01 × 17,748.61
  4. Step 4: Simplify right side
    67,668.68x = 1,801,643,829.98
  5. Step 5: Solve for x
    x = 1,801,643,829.98/67,668.68
  6. Step 6: Final answer
    x = 26,624.49

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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.