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Finding the Fourth Proportional to 2,263.46, 3,393.81 and 875.62

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Solution

The fourth proportional to 2,263.46, 3,393.81 and 875.62 is: 1,312.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,263.46 : 3,393.81 = 875.62 : x
  2. Step 2: Convert to fraction form
    2,263.46/3,393.81 = 875.62/x
  3. Step 3: Cross multiply
    2,263.46x = 3,393.81 × 875.62
  4. Step 4: Simplify right side
    2,263.46x = 2,971,692.15
  5. Step 5: Solve for x
    x = 2,971,692.15/2,263.46
  6. Step 6: Final answer
    x = 1,312.90

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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.