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Finding the Fourth Proportional to 28,973.80, 43,395.90 and 22,364.20

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Solution

The fourth proportional to 28,973.80, 43,395.90 and 22,364.20 is: 33,496.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,973.80 : 43,395.90 = 22,364.20 : x
  2. Step 2: Convert to fraction form
    28,973.80/43,395.90 = 22,364.20/x
  3. Step 3: Cross multiply
    28,973.80x = 43,395.90 × 22,364.20
  4. Step 4: Simplify right side
    28,973.80x = 970,514,586.78
  5. Step 5: Solve for x
    x = 970,514,586.78/28,973.80
  6. Step 6: Final answer
    x = 33,496.28

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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.