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Finding the Fourth Proportional to 22,001.60, 33,007.52 and 7,209.60

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Solution

The fourth proportional to 22,001.60, 33,007.52 and 7,209.60 is: 10,816.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,001.60 : 33,007.52 = 7,209.60 : x
  2. Step 2: Convert to fraction form
    22,001.60/33,007.52 = 7,209.60/x
  3. Step 3: Cross multiply
    22,001.60x = 33,007.52 × 7,209.60
  4. Step 4: Simplify right side
    22,001.60x = 237,971,016.19
  5. Step 5: Solve for x
    x = 237,971,016.19/22,001.60
  6. Step 6: Final answer
    x = 10,816.08

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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.