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Finding the Fourth Proportional to 22,159.40, 33,231.90 and 7,365.80

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Solution

The fourth proportional to 22,159.40, 33,231.90 and 7,365.80 is: 11,046.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,159.40 : 33,231.90 = 7,365.80 : x
  2. Step 2: Convert to fraction form
    22,159.40/33,231.90 = 7,365.80/x
  3. Step 3: Cross multiply
    22,159.40x = 33,231.90 × 7,365.80
  4. Step 4: Simplify right side
    22,159.40x = 244,779,529.02
  5. Step 5: Solve for x
    x = 244,779,529.02/22,159.40
  6. Step 6: Final answer
    x = 11,046.31

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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.