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Finding the Fourth Proportional to 62,361, 93,542.31 and 20,808

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Solution

The fourth proportional to 62,361, 93,542.31 and 20,808 is: 31,212.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,361 : 93,542.31 = 20,808 : x
  2. Step 2: Convert to fraction form
    62,361/93,542.31 = 20,808/x
  3. Step 3: Cross multiply
    62,361x = 93,542.31 × 20,808
  4. Step 4: Simplify right side
    62,361x = 1,946,428,386.48
  5. Step 5: Solve for x
    x = 1,946,428,386.48/62,361
  6. Step 6: Final answer
    x = 31,212.27

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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.