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Finding the Fourth Proportional to 62,961.59, 94,419.71 and 20,833.90

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Solution

The fourth proportional to 62,961.59, 94,419.71 and 20,833.90 is: 31,243.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,961.59 : 94,419.71 = 20,833.90 : x
  2. Step 2: Convert to fraction form
    62,961.59/94,419.71 = 20,833.90/x
  3. Step 3: Cross multiply
    62,961.59x = 94,419.71 × 20,833.90
  4. Step 4: Simplify right side
    62,961.59x = 1,967,130,796.17
  5. Step 5: Solve for x
    x = 1,967,130,796.17/62,961.59
  6. Step 6: Final answer
    x = 31,243.35

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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.