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Finding the Fourth Proportional to 28,887.60, 43,363.80 and 22,342.80

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Solution

The fourth proportional to 28,887.60, 43,363.80 and 22,342.80 is: 33,539.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,887.60 : 43,363.80 = 22,342.80 : x
  2. Step 2: Convert to fraction form
    28,887.60/43,363.80 = 22,342.80/x
  3. Step 3: Cross multiply
    28,887.60x = 43,363.80 × 22,342.80
  4. Step 4: Simplify right side
    28,887.60x = 968,868,710.64
  5. Step 5: Solve for x
    x = 968,868,710.64/28,887.60
  6. Step 6: Final answer
    x = 33,539.26

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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.