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Finding the Fourth Proportional to 2,958.48, 4,083.48 and 2,001.60

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Solution

The fourth proportional to 2,958.48, 4,083.48 and 2,001.60 is: 2,762.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,958.48 : 4,083.48 = 2,001.60 : x
  2. Step 2: Convert to fraction form
    2,958.48/4,083.48 = 2,001.60/x
  3. Step 3: Cross multiply
    2,958.48x = 4,083.48 × 2,001.60
  4. Step 4: Simplify right side
    2,958.48x = 8,173,493.57
  5. Step 5: Solve for x
    x = 8,173,493.57/2,958.48
  6. Step 6: Final answer
    x = 2,762.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.