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Finding the Fourth Proportional to 19,719.49, 29,579.24 and 5,868.49

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Solution

The fourth proportional to 19,719.49, 29,579.24 and 5,868.49 is: 8,802.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,719.49 : 29,579.24 = 5,868.49 : x
  2. Step 2: Convert to fraction form
    19,719.49/29,579.24 = 5,868.49/x
  3. Step 3: Cross multiply
    19,719.49x = 29,579.24 × 5,868.49
  4. Step 4: Simplify right side
    19,719.49x = 173,585,528.77
  5. Step 5: Solve for x
    x = 173,585,528.77/19,719.49
  6. Step 6: Final answer
    x = 8,802.74

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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.