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Finding the Fourth Proportional to 2,340.74, 3,511.10 and 953.77

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Solution

The fourth proportional to 2,340.74, 3,511.10 and 953.77 is: 1,430.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,340.74 : 3,511.10 = 953.77 : x
  2. Step 2: Convert to fraction form
    2,340.74/3,511.10 = 953.77/x
  3. Step 3: Cross multiply
    2,340.74x = 3,511.10 × 953.77
  4. Step 4: Simplify right side
    2,340.74x = 3,348,781.85
  5. Step 5: Solve for x
    x = 3,348,781.85/2,340.74
  6. Step 6: Final answer
    x = 1,430.65

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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.