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Finding the Fourth Proportional to 29,019.84, 43,551.84 and 19,155.84

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Solution

The fourth proportional to 29,019.84, 43,551.84 and 19,155.84 is: 28,748.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,019.84 : 43,551.84 = 19,155.84 : x
  2. Step 2: Convert to fraction form
    29,019.84/43,551.84 = 19,155.84/x
  3. Step 3: Cross multiply
    29,019.84x = 43,551.84 × 19,155.84
  4. Step 4: Simplify right side
    29,019.84x = 834,272,078.75
  5. Step 5: Solve for x
    x = 834,272,078.75/29,019.84
  6. Step 6: Final answer
    x = 28,748.33

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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.