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Finding the Fourth Proportional to 4,920.32, 7,362.24 and 3,943.46

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Solution

The fourth proportional to 4,920.32, 7,362.24 and 3,943.46 is: 5,900.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.32 : 7,362.24 = 3,943.46 : x
  2. Step 2: Convert to fraction form
    4,920.32/7,362.24 = 3,943.46/x
  3. Step 3: Cross multiply
    4,920.32x = 7,362.24 × 3,943.46
  4. Step 4: Simplify right side
    4,920.32x = 29,032,698.95
  5. Step 5: Solve for x
    x = 29,032,698.95/4,920.32
  6. Step 6: Final answer
    x = 5,900.57

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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.