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Finding the Fourth Proportional to 66,548.52, 99,789.48 and 22,159.80

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Solution

The fourth proportional to 66,548.52, 99,789.48 and 22,159.80 is: 33,228.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,548.52 : 99,789.48 = 22,159.80 : x
  2. Step 2: Convert to fraction form
    66,548.52/99,789.48 = 22,159.80/x
  3. Step 3: Cross multiply
    66,548.52x = 99,789.48 × 22,159.80
  4. Step 4: Simplify right side
    66,548.52x = 2,211,314,918.90
  5. Step 5: Solve for x
    x = 2,211,314,918.90/66,548.52
  6. Step 6: Final answer
    x = 33,228.61

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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.