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Finding the Fourth Proportional to 10,448.59, 15,662.89 and 3,873.01

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Solution

The fourth proportional to 10,448.59, 15,662.89 and 3,873.01 is: 5,805.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,448.59 : 15,662.89 = 3,873.01 : x
  2. Step 2: Convert to fraction form
    10,448.59/15,662.89 = 3,873.01/x
  3. Step 3: Cross multiply
    10,448.59x = 15,662.89 × 3,873.01
  4. Step 4: Simplify right side
    10,448.59x = 60,662,529.60
  5. Step 5: Solve for x
    x = 60,662,529.60/10,448.59
  6. Step 6: Final answer
    x = 5,805.81

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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.