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Finding the Fourth Proportional to 37,758.51, 52,108.08 and 20,764.05

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Solution

The fourth proportional to 37,758.51, 52,108.08 and 20,764.05 is: 28,655.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,758.51 : 52,108.08 = 20,764.05 : x
  2. Step 2: Convert to fraction form
    37,758.51/52,108.08 = 20,764.05/x
  3. Step 3: Cross multiply
    37,758.51x = 52,108.08 × 20,764.05
  4. Step 4: Simplify right side
    37,758.51x = 1,081,974,778.52
  5. Step 5: Solve for x
    x = 1,081,974,778.52/37,758.51
  6. Step 6: Final answer
    x = 28,655.12

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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.