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Finding the Fourth Proportional to 2,917.52, 4,374.64 and 968.68

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Solution

The fourth proportional to 2,917.52, 4,374.64 and 968.68 is: 1,452.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.52 : 4,374.64 = 968.68 : x
  2. Step 2: Convert to fraction form
    2,917.52/4,374.64 = 968.68/x
  3. Step 3: Cross multiply
    2,917.52x = 4,374.64 × 968.68
  4. Step 4: Simplify right side
    2,917.52x = 4,237,626.28
  5. Step 5: Solve for x
    x = 4,237,626.28/2,917.52
  6. Step 6: Final answer
    x = 1,452.48

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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.