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Finding the Fourth Proportional to 55,757.88, 77,009.76 and 36,722.79

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Solution

The fourth proportional to 55,757.88, 77,009.76 and 36,722.79 is: 50,719.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,757.88 : 77,009.76 = 36,722.79 : x
  2. Step 2: Convert to fraction form
    55,757.88/77,009.76 = 36,722.79/x
  3. Step 3: Cross multiply
    55,757.88x = 77,009.76 × 36,722.79
  4. Step 4: Simplify right side
    55,757.88x = 2,828,013,244.43
  5. Step 5: Solve for x
    x = 2,828,013,244.43/55,757.88
  6. Step 6: Final answer
    x = 50,719.53

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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.