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Finding the Fourth Proportional to 64,810.49, 96,996.17 and 39,866.33

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Solution

The fourth proportional to 64,810.49, 96,996.17 and 39,866.33 is: 59,664.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,810.49 : 96,996.17 = 39,866.33 : x
  2. Step 2: Convert to fraction form
    64,810.49/96,996.17 = 39,866.33/x
  3. Step 3: Cross multiply
    64,810.49x = 96,996.17 × 39,866.33
  4. Step 4: Simplify right side
    64,810.49x = 3,866,880,637.64
  5. Step 5: Solve for x
    x = 3,866,880,637.64/64,810.49
  6. Step 6: Final answer
    x = 59,664.43

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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.