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Finding the Fourth Proportional to 13,719.58, 20,560.87 and 10,004.41

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Solution

The fourth proportional to 13,719.58, 20,560.87 and 10,004.41 is: 14,993.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719.58 : 20,560.87 = 10,004.41 : x
  2. Step 2: Convert to fraction form
    13,719.58/20,560.87 = 10,004.41/x
  3. Step 3: Cross multiply
    13,719.58x = 20,560.87 × 10,004.41
  4. Step 4: Simplify right side
    13,719.58x = 205,699,411.64
  5. Step 5: Solve for x
    x = 205,699,411.64/13,719.58
  6. Step 6: Final answer
    x = 14,993.13

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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.