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Finding the Fourth Proportional to 22,001.22, 32,978.70 and 7,206.30

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Solution

The fourth proportional to 22,001.22, 32,978.70 and 7,206.30 is: 10,801.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,001.22 : 32,978.70 = 7,206.30 : x
  2. Step 2: Convert to fraction form
    22,001.22/32,978.70 = 7,206.30/x
  3. Step 3: Cross multiply
    22,001.22x = 32,978.70 × 7,206.30
  4. Step 4: Simplify right side
    22,001.22x = 237,654,405.81
  5. Step 5: Solve for x
    x = 237,654,405.81/22,001.22
  6. Step 6: Final answer
    x = 10,801.87

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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.