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Finding the Fourth Proportional to 29,376.87, 44,109.05 and 11,880.87

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Solution

The fourth proportional to 29,376.87, 44,109.05 and 11,880.87 is: 17,838.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,376.87 : 44,109.05 = 11,880.87 : x
  2. Step 2: Convert to fraction form
    29,376.87/44,109.05 = 11,880.87/x
  3. Step 3: Cross multiply
    29,376.87x = 44,109.05 × 11,880.87
  4. Step 4: Simplify right side
    29,376.87x = 524,053,829.47
  5. Step 5: Solve for x
    x = 524,053,829.47/29,376.87
  6. Step 6: Final answer
    x = 17,838.99

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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.