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Finding the Fourth Proportional to 3,062.58, 4,591.62 and 981.39

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Solution

The fourth proportional to 3,062.58, 4,591.62 and 981.39 is: 1,471.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,062.58 : 4,591.62 = 981.39 : x
  2. Step 2: Convert to fraction form
    3,062.58/4,591.62 = 981.39/x
  3. Step 3: Cross multiply
    3,062.58x = 4,591.62 × 981.39
  4. Step 4: Simplify right side
    3,062.58x = 4,506,169.95
  5. Step 5: Solve for x
    x = 4,506,169.95/3,062.58
  6. Step 6: Final answer
    x = 1,471.36

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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.