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Finding the Fourth Proportional to 64,660.82, 96,980.22 and 17,902.76

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Solution

The fourth proportional to 64,660.82, 96,980.22 and 17,902.76 is: 26,851.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,660.82 : 96,980.22 = 17,902.76 : x
  2. Step 2: Convert to fraction form
    64,660.82/96,980.22 = 17,902.76/x
  3. Step 3: Cross multiply
    64,660.82x = 96,980.22 × 17,902.76
  4. Step 4: Simplify right side
    64,660.82x = 1,736,213,118.51
  5. Step 5: Solve for x
    x = 1,736,213,118.51/64,660.82
  6. Step 6: Final answer
    x = 26,851.09

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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.