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Finding the Fourth Proportional to 7,376.82, 10,180.31 and 4,019.82

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Solution

The fourth proportional to 7,376.82, 10,180.31 and 4,019.82 is: 5,547.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,376.82 : 10,180.31 = 4,019.82 : x
  2. Step 2: Convert to fraction form
    7,376.82/10,180.31 = 4,019.82/x
  3. Step 3: Cross multiply
    7,376.82x = 10,180.31 × 4,019.82
  4. Step 4: Simplify right side
    7,376.82x = 40,923,013.74
  5. Step 5: Solve for x
    x = 40,923,013.74/7,376.82
  6. Step 6: Final answer
    x = 5,547.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.