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Finding the Fourth Proportional to 3,953.60, 5,930.52 and 1,356.50

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Solution

The fourth proportional to 3,953.60, 5,930.52 and 1,356.50 is: 2,034.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,953.60 : 5,930.52 = 1,356.50 : x
  2. Step 2: Convert to fraction form
    3,953.60/5,930.52 = 1,356.50/x
  3. Step 3: Cross multiply
    3,953.60x = 5,930.52 × 1,356.50
  4. Step 4: Simplify right side
    3,953.60x = 8,044,750.38
  5. Step 5: Solve for x
    x = 8,044,750.38/3,953.60
  6. Step 6: Final answer
    x = 2,034.79

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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.