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Finding the Fourth Proportional to 66,427.20, 99,619.20 and 22,046.40

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Solution

The fourth proportional to 66,427.20, 99,619.20 and 22,046.40 is: 33,062.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,427.20 : 99,619.20 = 22,046.40 : x
  2. Step 2: Convert to fraction form
    66,427.20/99,619.20 = 22,046.40/x
  3. Step 3: Cross multiply
    66,427.20x = 99,619.20 × 22,046.40
  4. Step 4: Simplify right side
    66,427.20x = 2,196,244,730.88
  5. Step 5: Solve for x
    x = 2,196,244,730.88/66,427.20
  6. Step 6: Final answer
    x = 33,062.43

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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.