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Finding the Fourth Proportional to 39,951.99, 55,143.18 and 22,966.08

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Solution

The fourth proportional to 39,951.99, 55,143.18 and 22,966.08 is: 31,698.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,951.99 : 55,143.18 = 22,966.08 : x
  2. Step 2: Convert to fraction form
    39,951.99/55,143.18 = 22,966.08/x
  3. Step 3: Cross multiply
    39,951.99x = 55,143.18 × 22,966.08
  4. Step 4: Simplify right side
    39,951.99x = 1,266,422,568.50
  5. Step 5: Solve for x
    x = 1,266,422,568.50/39,951.99
  6. Step 6: Final answer
    x = 31,698.61

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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.