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Finding the Fourth Proportional to 29,984.72, 45,004.52 and 15,203.84

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Solution

The fourth proportional to 29,984.72, 45,004.52 and 15,203.84 is: 22,819.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,984.72 : 45,004.52 = 15,203.84 : x
  2. Step 2: Convert to fraction form
    29,984.72/45,004.52 = 15,203.84/x
  3. Step 3: Cross multiply
    29,984.72x = 45,004.52 × 15,203.84
  4. Step 4: Simplify right side
    29,984.72x = 684,241,671.88
  5. Step 5: Solve for x
    x = 684,241,671.88/29,984.72
  6. Step 6: Final answer
    x = 22,819.68

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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.