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Finding the Fourth Proportional to 55,078.38, 76,008.76 and 29,927.88

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Solution

The fourth proportional to 55,078.38, 76,008.76 and 29,927.88 is: 41,300.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,078.38 : 76,008.76 = 29,927.88 : x
  2. Step 2: Convert to fraction form
    55,078.38/76,008.76 = 29,927.88/x
  3. Step 3: Cross multiply
    55,078.38x = 76,008.76 × 29,927.88
  4. Step 4: Simplify right side
    55,078.38x = 2,274,781,048.23
  5. Step 5: Solve for x
    x = 2,274,781,048.23/55,078.38
  6. Step 6: Final answer
    x = 41,300.80

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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.