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Finding the Fourth Proportional to 28,941.80, 43,412.70 and 22,029.80

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Solution

The fourth proportional to 28,941.80, 43,412.70 and 22,029.80 is: 33,044.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,941.80 : 43,412.70 = 22,029.80 : x
  2. Step 2: Convert to fraction form
    28,941.80/43,412.70 = 22,029.80/x
  3. Step 3: Cross multiply
    28,941.80x = 43,412.70 × 22,029.80
  4. Step 4: Simplify right side
    28,941.80x = 956,373,098.46
  5. Step 5: Solve for x
    x = 956,373,098.46/28,941.80
  6. Step 6: Final answer
    x = 33,044.70

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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.