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Finding the Fourth Proportional to 7,368.80, 11,055.72 and 3,473.48

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Solution

The fourth proportional to 7,368.80, 11,055.72 and 3,473.48 is: 5,211.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,368.80 : 11,055.72 = 3,473.48 : x
  2. Step 2: Convert to fraction form
    7,368.80/11,055.72 = 3,473.48/x
  3. Step 3: Cross multiply
    7,368.80x = 11,055.72 × 3,473.48
  4. Step 4: Simplify right side
    7,368.80x = 38,401,822.31
  5. Step 5: Solve for x
    x = 38,401,822.31/7,368.80
  6. Step 6: Final answer
    x = 5,211.41

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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.