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Finding the Fourth Proportional to 64,492.20, 96,738.30 and 17,107.20

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Solution

The fourth proportional to 64,492.20, 96,738.30 and 17,107.20 is: 25,660.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,492.20 : 96,738.30 = 17,107.20 : x
  2. Step 2: Convert to fraction form
    64,492.20/96,738.30 = 17,107.20/x
  3. Step 3: Cross multiply
    64,492.20x = 96,738.30 × 17,107.20
  4. Step 4: Simplify right side
    64,492.20x = 1,654,921,445.76
  5. Step 5: Solve for x
    x = 1,654,921,445.76/64,492.20
  6. Step 6: Final answer
    x = 25,660.80

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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.