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Finding the Fourth Proportional to 57,927.63, 80,005.74 and 39,031.95

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Solution

The fourth proportional to 57,927.63, 80,005.74 and 39,031.95 is: 53,908.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,927.63 : 80,005.74 = 39,031.95 : x
  2. Step 2: Convert to fraction form
    57,927.63/80,005.74 = 39,031.95/x
  3. Step 3: Cross multiply
    57,927.63x = 80,005.74 × 39,031.95
  4. Step 4: Simplify right side
    57,927.63x = 3,122,780,043.39
  5. Step 5: Solve for x
    x = 3,122,780,043.39/57,927.63
  6. Step 6: Final answer
    x = 53,908.30

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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.