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Finding the Fourth Proportional to 29,688.36, 44,446 and 15,615

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Solution

The fourth proportional to 29,688.36, 44,446 and 15,615 is: 23,376.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,688.36 : 44,446 = 15,615 : x
  2. Step 2: Convert to fraction form
    29,688.36/44,446 = 15,615/x
  3. Step 3: Cross multiply
    29,688.36x = 44,446 × 15,615
  4. Step 4: Simplify right side
    29,688.36x = 694,024,290
  5. Step 5: Solve for x
    x = 694,024,290/29,688.36
  6. Step 6: Final answer
    x = 23,376.98

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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.