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Finding the Fourth Proportional to 61,797.45, 92,672.20 and 21,263.27

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Solution

The fourth proportional to 61,797.45, 92,672.20 and 21,263.27 is: 31,886.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,797.45 : 92,672.20 = 21,263.27 : x
  2. Step 2: Convert to fraction form
    61,797.45/92,672.20 = 21,263.27/x
  3. Step 3: Cross multiply
    61,797.45x = 92,672.20 × 21,263.27
  4. Step 4: Simplify right side
    61,797.45x = 1,970,513,573.31
  5. Step 5: Solve for x
    x = 1,970,513,573.31/61,797.45
  6. Step 6: Final answer
    x = 31,886.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.