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Finding the Fourth Proportional to 2,473.64, 3,709.88 and 718.18

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Solution

The fourth proportional to 2,473.64, 3,709.88 and 718.18 is: 1,077.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,473.64 : 3,709.88 = 718.18 : x
  2. Step 2: Convert to fraction form
    2,473.64/3,709.88 = 718.18/x
  3. Step 3: Cross multiply
    2,473.64x = 3,709.88 × 718.18
  4. Step 4: Simplify right side
    2,473.64x = 2,664,361.62
  5. Step 5: Solve for x
    x = 2,664,361.62/2,473.64
  6. Step 6: Final answer
    x = 1,077.10

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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.