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Finding the Fourth Proportional to 2,713.52, 4,070.87 and 958.45

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Solution

The fourth proportional to 2,713.52, 4,070.87 and 958.45 is: 1,437.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,713.52 : 4,070.87 = 958.45 : x
  2. Step 2: Convert to fraction form
    2,713.52/4,070.87 = 958.45/x
  3. Step 3: Cross multiply
    2,713.52x = 4,070.87 × 958.45
  4. Step 4: Simplify right side
    2,713.52x = 3,901,725.35
  5. Step 5: Solve for x
    x = 3,901,725.35/2,713.52
  6. Step 6: Final answer
    x = 1,437.88

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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.