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Finding the Fourth Proportional to 64,952.53, 97,431.63 and 20,582.56

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Solution

The fourth proportional to 64,952.53, 97,431.63 and 20,582.56 is: 30,874.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,952.53 : 97,431.63 = 20,582.56 : x
  2. Step 2: Convert to fraction form
    64,952.53/97,431.63 = 20,582.56/x
  3. Step 3: Cross multiply
    64,952.53x = 97,431.63 × 20,582.56
  4. Step 4: Simplify right side
    64,952.53x = 2,005,391,883.21
  5. Step 5: Solve for x
    x = 2,005,391,883.21/64,952.53
  6. Step 6: Final answer
    x = 30,874.73

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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.