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Finding the Fourth Proportional to 65,697.01, 98,483.16 and 21,292.56

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Solution

The fourth proportional to 65,697.01, 98,483.16 and 21,292.56 is: 31,918.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,697.01 : 98,483.16 = 21,292.56 : x
  2. Step 2: Convert to fraction form
    65,697.01/98,483.16 = 21,292.56/x
  3. Step 3: Cross multiply
    65,697.01x = 98,483.16 × 21,292.56
  4. Step 4: Simplify right side
    65,697.01x = 2,096,958,593.29
  5. Step 5: Solve for x
    x = 2,096,958,593.29/65,697.01
  6. Step 6: Final answer
    x = 31,918.63

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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.