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Finding the Fourth Proportional to 66,989.52, 100,483.25 and 22,647.42

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Solution

The fourth proportional to 66,989.52, 100,483.25 and 22,647.42 is: 33,970.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,989.52 : 100,483.25 = 22,647.42 : x
  2. Step 2: Convert to fraction form
    66,989.52/100,483.25 = 22,647.42/x
  3. Step 3: Cross multiply
    66,989.52x = 100,483.25 × 22,647.42
  4. Step 4: Simplify right side
    66,989.52x = 2,275,686,252.48
  5. Step 5: Solve for x
    x = 2,275,686,252.48/66,989.52
  6. Step 6: Final answer
    x = 33,970.78

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1.5x scale

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.