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Finding the Fourth Proportional to 13,377.89, 20,055.89 and 5,053.19

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Solution

The fourth proportional to 13,377.89, 20,055.89 and 5,053.19 is: 7,575.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,377.89 : 20,055.89 = 5,053.19 : x
  2. Step 2: Convert to fraction form
    13,377.89/20,055.89 = 5,053.19/x
  3. Step 3: Cross multiply
    13,377.89x = 20,055.89 × 5,053.19
  4. Step 4: Simplify right side
    13,377.89x = 101,346,135.14
  5. Step 5: Solve for x
    x = 101,346,135.14/13,377.89
  6. Step 6: Final answer
    x = 7,575.64

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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.