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Finding the Fourth Proportional to 1,711.14, 2,361.36 and 925.18

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Solution

The fourth proportional to 1,711.14, 2,361.36 and 925.18 is: 1,276.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,711.14 : 2,361.36 = 925.18 : x
  2. Step 2: Convert to fraction form
    1,711.14/2,361.36 = 925.18/x
  3. Step 3: Cross multiply
    1,711.14x = 2,361.36 × 925.18
  4. Step 4: Simplify right side
    1,711.14x = 2,184,683.04
  5. Step 5: Solve for x
    x = 2,184,683.04/1,711.14
  6. Step 6: Final answer
    x = 1,276.74

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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.