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Finding the Fourth Proportional to 29,751.22, 41,023.02 and 18,981.69

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Solution

The fourth proportional to 29,751.22, 41,023.02 and 18,981.69 is: 26,173.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,751.22 : 41,023.02 = 18,981.69 : x
  2. Step 2: Convert to fraction form
    29,751.22/41,023.02 = 18,981.69/x
  3. Step 3: Cross multiply
    29,751.22x = 41,023.02 × 18,981.69
  4. Step 4: Simplify right side
    29,751.22x = 778,686,043.39
  5. Step 5: Solve for x
    x = 778,686,043.39/29,751.22
  6. Step 6: Final answer
    x = 26,173.25

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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.