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Finding the Fourth Proportional to 55,778.93, 76,974.76 and 33,422.93

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Solution

The fourth proportional to 55,778.93, 76,974.76 and 33,422.93 is: 46,123.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,778.93 : 76,974.76 = 33,422.93 : x
  2. Step 2: Convert to fraction form
    55,778.93/76,974.76 = 33,422.93/x
  3. Step 3: Cross multiply
    55,778.93x = 76,974.76 × 33,422.93
  4. Step 4: Simplify right side
    55,778.93x = 2,572,722,015.25
  5. Step 5: Solve for x
    x = 2,572,722,015.25/55,778.93
  6. Step 6: Final answer
    x = 46,123.55

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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.