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Finding the Fourth Proportional to 62,219, 93,328.50 and 18,443

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Solution

The fourth proportional to 62,219, 93,328.50 and 18,443 is: 27,664.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,219 : 93,328.50 = 18,443 : x
  2. Step 2: Convert to fraction form
    62,219/93,328.50 = 18,443/x
  3. Step 3: Cross multiply
    62,219x = 93,328.50 × 18,443
  4. Step 4: Simplify right side
    62,219x = 1,721,257,525.50
  5. Step 5: Solve for x
    x = 1,721,257,525.50/62,219
  6. Step 6: Final answer
    x = 27,664.50

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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.