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Finding the Fourth Proportional to 2,920.49, 4,370.25 and 2,724.98

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Solution

The fourth proportional to 2,920.49, 4,370.25 and 2,724.98 is: 4,077.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.49 : 4,370.25 = 2,724.98 : x
  2. Step 2: Convert to fraction form
    2,920.49/4,370.25 = 2,724.98/x
  3. Step 3: Cross multiply
    2,920.49x = 4,370.25 × 2,724.98
  4. Step 4: Simplify right side
    2,920.49x = 11,908,832.21
  5. Step 5: Solve for x
    x = 11,908,832.21/2,920.49
  6. Step 6: Final answer
    x = 4,077.68

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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.