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Finding the Fourth Proportional to 64,607.92, 96,913.70 and 17,860.79

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Solution

The fourth proportional to 64,607.92, 96,913.70 and 17,860.79 is: 26,791.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,607.92 : 96,913.70 = 17,860.79 : x
  2. Step 2: Convert to fraction form
    64,607.92/96,913.70 = 17,860.79/x
  3. Step 3: Cross multiply
    64,607.92x = 96,913.70 × 17,860.79
  4. Step 4: Simplify right side
    64,607.92x = 1,730,955,243.82
  5. Step 5: Solve for x
    x = 1,730,955,243.82/64,607.92
  6. Step 6: Final answer
    x = 26,791.69

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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.