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Finding the Fourth Proportional to 2,595.90, 3,891.50 and 951.30

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Solution

The fourth proportional to 2,595.90, 3,891.50 and 951.30 is: 1,426.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,595.90 : 3,891.50 = 951.30 : x
  2. Step 2: Convert to fraction form
    2,595.90/3,891.50 = 951.30/x
  3. Step 3: Cross multiply
    2,595.90x = 3,891.50 × 951.30
  4. Step 4: Simplify right side
    2,595.90x = 3,701,983.95
  5. Step 5: Solve for x
    x = 3,701,983.95/2,595.90
  6. Step 6: Final answer
    x = 1,426.09

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Double scale
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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.