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Finding the Fourth Proportional to 8,980.62, 13,471.62 and 2,741.18

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Solution

The fourth proportional to 8,980.62, 13,471.62 and 2,741.18 is: 4,111.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,980.62 : 13,471.62 = 2,741.18 : x
  2. Step 2: Convert to fraction form
    8,980.62/13,471.62 = 2,741.18/x
  3. Step 3: Cross multiply
    8,980.62x = 13,471.62 × 2,741.18
  4. Step 4: Simplify right side
    8,980.62x = 36,928,135.31
  5. Step 5: Solve for x
    x = 36,928,135.31/8,980.62
  6. Step 6: Final answer
    x = 4,111.98

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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.