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Finding the Fourth Proportional to 14,011.74, 19,336.44 and 7,724.10

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Solution

The fourth proportional to 14,011.74, 19,336.44 and 7,724.10 is: 10,659.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,011.74 : 19,336.44 = 7,724.10 : x
  2. Step 2: Convert to fraction form
    14,011.74/19,336.44 = 7,724.10/x
  3. Step 3: Cross multiply
    14,011.74x = 19,336.44 × 7,724.10
  4. Step 4: Simplify right side
    14,011.74x = 149,356,596.20
  5. Step 5: Solve for x
    x = 149,356,596.20/14,011.74
  6. Step 6: Final answer
    x = 10,659.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.