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Finding the Fourth Proportional to 2,175.02, 3,262.68 and 876.50

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Solution

The fourth proportional to 2,175.02, 3,262.68 and 876.50 is: 1,314.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.02 : 3,262.68 = 876.50 : x
  2. Step 2: Convert to fraction form
    2,175.02/3,262.68 = 876.50/x
  3. Step 3: Cross multiply
    2,175.02x = 3,262.68 × 876.50
  4. Step 4: Simplify right side
    2,175.02x = 2,859,739.02
  5. Step 5: Solve for x
    x = 2,859,739.02/2,175.02
  6. Step 6: Final answer
    x = 1,314.81

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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.