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Finding the Fourth Proportional to 68,571.51, 94,637.78 and 38,368.41

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Solution

The fourth proportional to 68,571.51, 94,637.78 and 38,368.41 is: 52,953.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,571.51 : 94,637.78 = 38,368.41 : x
  2. Step 2: Convert to fraction form
    68,571.51/94,637.78 = 38,368.41/x
  3. Step 3: Cross multiply
    68,571.51x = 94,637.78 × 38,368.41
  4. Step 4: Simplify right side
    68,571.51x = 3,631,100,952.69
  5. Step 5: Solve for x
    x = 3,631,100,952.69/68,571.51
  6. Step 6: Final answer
    x = 52,953.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.