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Finding the Fourth Proportional to 62,252, 93,378.81 and 20,699

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Solution

The fourth proportional to 62,252, 93,378.81 and 20,699 is: 31,048.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,252 : 93,378.81 = 20,699 : x
  2. Step 2: Convert to fraction form
    62,252/93,378.81 = 20,699/x
  3. Step 3: Cross multiply
    62,252x = 93,378.81 × 20,699
  4. Step 4: Simplify right side
    62,252x = 1,932,847,988.19
  5. Step 5: Solve for x
    x = 1,932,847,988.19/62,252
  6. Step 6: Final answer
    x = 31,048.77

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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.