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Finding the Fourth Proportional to 2,175.46, 3,263.19 and 876.63

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Solution

The fourth proportional to 2,175.46, 3,263.19 and 876.63 is: 1,314.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.46 : 3,263.19 = 876.63 : x
  2. Step 2: Convert to fraction form
    2,175.46/3,263.19 = 876.63/x
  3. Step 3: Cross multiply
    2,175.46x = 3,263.19 × 876.63
  4. Step 4: Simplify right side
    2,175.46x = 2,860,610.25
  5. Step 5: Solve for x
    x = 2,860,610.25/2,175.46
  6. Step 6: Final answer
    x = 1,314.95

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1.5x scale

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.