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Finding the Fourth Proportional to 1,960.08, 2,705.16 and 1,132.08

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Solution

The fourth proportional to 1,960.08, 2,705.16 and 1,132.08 is: 1,562.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,960.08 : 2,705.16 = 1,132.08 : x
  2. Step 2: Convert to fraction form
    1,960.08/2,705.16 = 1,132.08/x
  3. Step 3: Cross multiply
    1,960.08x = 2,705.16 × 1,132.08
  4. Step 4: Simplify right side
    1,960.08x = 3,062,457.53
  5. Step 5: Solve for x
    x = 3,062,457.53/1,960.08
  6. Step 6: Final answer
    x = 1,562.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.