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Finding the Fourth Proportional to 55,736.71, 83,601.92 and 40,759.20

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Solution

The fourth proportional to 55,736.71, 83,601.92 and 40,759.20 is: 61,136.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,736.71 : 83,601.92 = 40,759.20 : x
  2. Step 2: Convert to fraction form
    55,736.71/83,601.92 = 40,759.20/x
  3. Step 3: Cross multiply
    55,736.71x = 83,601.92 × 40,759.20
  4. Step 4: Simplify right side
    55,736.71x = 3,407,547,479.56
  5. Step 5: Solve for x
    x = 3,407,547,479.56/55,736.71
  6. Step 6: Final answer
    x = 61,136.50

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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.