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Finding the Fourth Proportional to 64,618.92, 96,891.92 and 25,130.80

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Solution

The fourth proportional to 64,618.92, 96,891.92 and 25,130.80 is: 37,682.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,618.92 : 96,891.92 = 25,130.80 : x
  2. Step 2: Convert to fraction form
    64,618.92/96,891.92 = 25,130.80/x
  3. Step 3: Cross multiply
    64,618.92x = 96,891.92 × 25,130.80
  4. Step 4: Simplify right side
    64,618.92x = 2,434,971,463.14
  5. Step 5: Solve for x
    x = 2,434,971,463.14/64,618.92
  6. Step 6: Final answer
    x = 37,682.02

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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.