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Finding the Fourth Proportional to 3,611.95, 4,976.75 and 2,430.97

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Solution

The fourth proportional to 3,611.95, 4,976.75 and 2,430.97 is: 3,349.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.95 : 4,976.75 = 2,430.97 : x
  2. Step 2: Convert to fraction form
    3,611.95/4,976.75 = 2,430.97/x
  3. Step 3: Cross multiply
    3,611.95x = 4,976.75 × 2,430.97
  4. Step 4: Simplify right side
    3,611.95x = 12,098,323.58
  5. Step 5: Solve for x
    x = 12,098,323.58/3,611.95
  6. Step 6: Final answer
    x = 3,349.53

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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.