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Finding the Fourth Proportional to 2,913.75, 4,373.06 and 1,374.75

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Solution

The fourth proportional to 2,913.75, 4,373.06 and 1,374.75 is: 2,063.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.75 : 4,373.06 = 1,374.75 : x
  2. Step 2: Convert to fraction form
    2,913.75/4,373.06 = 1,374.75/x
  3. Step 3: Cross multiply
    2,913.75x = 4,373.06 × 1,374.75
  4. Step 4: Simplify right side
    2,913.75x = 6,011,857.36
  5. Step 5: Solve for x
    x = 6,011,857.36/2,913.75
  6. Step 6: Final answer
    x = 2,063.27

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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.