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Finding the Fourth Proportional to 1,959.39, 2,939.90 and 1,034.72

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Solution

The fourth proportional to 1,959.39, 2,939.90 and 1,034.72 is: 1,552.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,959.39 : 2,939.90 = 1,034.72 : x
  2. Step 2: Convert to fraction form
    1,959.39/2,939.90 = 1,034.72/x
  3. Step 3: Cross multiply
    1,959.39x = 2,939.90 × 1,034.72
  4. Step 4: Simplify right side
    1,959.39x = 3,041,981.02
  5. Step 5: Solve for x
    x = 3,041,981.02/1,959.39
  6. Step 6: Final answer
    x = 1,552.51

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.