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Finding the Fourth Proportional to 62,216, 93,324 and 18,440

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Solution

The fourth proportional to 62,216, 93,324 and 18,440 is: 27,660

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,216 : 93,324 = 18,440 : x
  2. Step 2: Convert to fraction form
    62,216/93,324 = 18,440/x
  3. Step 3: Cross multiply
    62,216x = 93,324 × 18,440
  4. Step 4: Simplify right side
    62,216x = 1,720,894,560
  5. Step 5: Solve for x
    x = 1,720,894,560/62,216
  6. Step 6: Final answer
    x = 27,660

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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.