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Finding the Fourth Proportional to 32,543.92, 44,903.36 and 21,212.40

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Solution

The fourth proportional to 32,543.92, 44,903.36 and 21,212.40 is: 29,268.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,543.92 : 44,903.36 = 21,212.40 : x
  2. Step 2: Convert to fraction form
    32,543.92/44,903.36 = 21,212.40/x
  3. Step 3: Cross multiply
    32,543.92x = 44,903.36 × 21,212.40
  4. Step 4: Simplify right side
    32,543.92x = 952,508,033.66
  5. Step 5: Solve for x
    x = 952,508,033.66/32,543.92
  6. Step 6: Final answer
    x = 29,268.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.