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Finding the Fourth Proportional to 2,972.53, 4,458.98 and 998.08

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Solution

The fourth proportional to 2,972.53, 4,458.98 and 998.08 is: 1,497.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,972.53 : 4,458.98 = 998.08 : x
  2. Step 2: Convert to fraction form
    2,972.53/4,458.98 = 998.08/x
  3. Step 3: Cross multiply
    2,972.53x = 4,458.98 × 998.08
  4. Step 4: Simplify right side
    2,972.53x = 4,450,397.09
  5. Step 5: Solve for x
    x = 4,450,397.09/2,972.53
  6. Step 6: Final answer
    x = 1,497.18

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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.