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Finding the Fourth Proportional to 22,040.52, 32,987.65 and 20,070.68

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Solution

The fourth proportional to 22,040.52, 32,987.65 and 20,070.68 is: 30,039.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,040.52 : 32,987.65 = 20,070.68 : x
  2. Step 2: Convert to fraction form
    22,040.52/32,987.65 = 20,070.68/x
  3. Step 3: Cross multiply
    22,040.52x = 32,987.65 × 20,070.68
  4. Step 4: Simplify right side
    22,040.52x = 662,084,466.75
  5. Step 5: Solve for x
    x = 662,084,466.75/22,040.52
  6. Step 6: Final answer
    x = 30,039.42

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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.