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Finding the Fourth Proportional to 2,959.53, 4,440.01 and 985.15

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Solution

The fourth proportional to 2,959.53, 4,440.01 and 985.15 is: 1,477.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,959.53 : 4,440.01 = 985.15 : x
  2. Step 2: Convert to fraction form
    2,959.53/4,440.01 = 985.15/x
  3. Step 3: Cross multiply
    2,959.53x = 4,440.01 × 985.15
  4. Step 4: Simplify right side
    2,959.53x = 4,374,082.63
  5. Step 5: Solve for x
    x = 4,374,082.63/2,959.53
  6. Step 6: Final answer
    x = 1,477.97

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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.