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Finding the Fourth Proportional to 2,712.98, 4,070.60 and 958.22

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Solution

The fourth proportional to 2,712.98, 4,070.60 and 958.22 is: 1,437.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.98 : 4,070.60 = 958.22 : x
  2. Step 2: Convert to fraction form
    2,712.98/4,070.60 = 958.22/x
  3. Step 3: Cross multiply
    2,712.98x = 4,070.60 × 958.22
  4. Step 4: Simplify right side
    2,712.98x = 3,900,530.33
  5. Step 5: Solve for x
    x = 3,900,530.33/2,712.98
  6. Step 6: Final answer
    x = 1,437.73

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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.