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Finding the Fourth Proportional to 3,159.67, 4,740.20 and 968.58

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Solution

The fourth proportional to 3,159.67, 4,740.20 and 968.58 is: 1,453.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.67 : 4,740.20 = 968.58 : x
  2. Step 2: Convert to fraction form
    3,159.67/4,740.20 = 968.58/x
  3. Step 3: Cross multiply
    3,159.67x = 4,740.20 × 968.58
  4. Step 4: Simplify right side
    3,159.67x = 4,591,262.92
  5. Step 5: Solve for x
    x = 4,591,262.92/3,159.67
  6. Step 6: Final answer
    x = 1,453.08

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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.