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Finding the Fourth Proportional to 52,806.63, 72,873.14 and 28,934.21

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Solution

The fourth proportional to 52,806.63, 72,873.14 and 28,934.21 is: 39,929.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,806.63 : 72,873.14 = 28,934.21 : x
  2. Step 2: Convert to fraction form
    52,806.63/72,873.14 = 28,934.21/x
  3. Step 3: Cross multiply
    52,806.63x = 72,873.14 × 28,934.21
  4. Step 4: Simplify right side
    52,806.63x = 2,108,526,591.45
  5. Step 5: Solve for x
    x = 2,108,526,591.45/52,806.63
  6. Step 6: Final answer
    x = 39,929.20

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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.