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Finding the Fourth Proportional to 64,893.69, 97,293.80 and 39,882.07

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Solution

The fourth proportional to 64,893.69, 97,293.80 and 39,882.07 is: 59,794.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,893.69 : 97,293.80 = 39,882.07 : x
  2. Step 2: Convert to fraction form
    64,893.69/97,293.80 = 39,882.07/x
  3. Step 3: Cross multiply
    64,893.69x = 97,293.80 × 39,882.07
  4. Step 4: Simplify right side
    64,893.69x = 3,880,278,142.17
  5. Step 5: Solve for x
    x = 3,880,278,142.17/64,893.69
  6. Step 6: Final answer
    x = 59,794.38

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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.