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Finding the Fourth Proportional to 61,908.71, 85,435.02 and 33,614.46

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Solution

The fourth proportional to 61,908.71, 85,435.02 and 33,614.46 is: 46,388.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,908.71 : 85,435.02 = 33,614.46 : x
  2. Step 2: Convert to fraction form
    61,908.71/85,435.02 = 33,614.46/x
  3. Step 3: Cross multiply
    61,908.71x = 85,435.02 × 33,614.46
  4. Step 4: Simplify right side
    61,908.71x = 2,871,852,062.39
  5. Step 5: Solve for x
    x = 2,871,852,062.39/61,908.71
  6. Step 6: Final answer
    x = 46,388.50

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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.