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Finding the Fourth Proportional to 73,953, 110,929.50 and 18,549

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Solution

The fourth proportional to 73,953, 110,929.50 and 18,549 is: 27,823.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,953 : 110,929.50 = 18,549 : x
  2. Step 2: Convert to fraction form
    73,953/110,929.50 = 18,549/x
  3. Step 3: Cross multiply
    73,953x = 110,929.50 × 18,549
  4. Step 4: Simplify right side
    73,953x = 2,057,631,295.50
  5. Step 5: Solve for x
    x = 2,057,631,295.50/73,953
  6. Step 6: Final answer
    x = 27,823.50

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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.