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Finding the Fourth Proportional to 1,342.54, 1,853.38 and 895.15

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Solution

The fourth proportional to 1,342.54, 1,853.38 and 895.15 is: 1,235.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,342.54 : 1,853.38 = 895.15 : x
  2. Step 2: Convert to fraction form
    1,342.54/1,853.38 = 895.15/x
  3. Step 3: Cross multiply
    1,342.54x = 1,853.38 × 895.15
  4. Step 4: Simplify right side
    1,342.54x = 1,659,056.54
  5. Step 5: Solve for x
    x = 1,659,056.54/1,342.54
  6. Step 6: Final answer
    x = 1,235.76

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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.