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Finding the Fourth Proportional to 45,838.76, 68,743.74 and 17,756.87

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Solution

The fourth proportional to 45,838.76, 68,743.74 and 17,756.87 is: 26,629.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,838.76 : 68,743.74 = 17,756.87 : x
  2. Step 2: Convert to fraction form
    45,838.76/68,743.74 = 17,756.87/x
  3. Step 3: Cross multiply
    45,838.76x = 68,743.74 × 17,756.87
  4. Step 4: Simplify right side
    45,838.76x = 1,220,673,654.49
  5. Step 5: Solve for x
    x = 1,220,673,654.49/45,838.76
  6. Step 6: Final answer
    x = 26,629.73

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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.