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Finding the Fourth Proportional to 7,368.72, 11,048.34 and 3,154.73

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Solution

The fourth proportional to 7,368.72, 11,048.34 and 3,154.73 is: 4,730.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,368.72 : 11,048.34 = 3,154.73 : x
  2. Step 2: Convert to fraction form
    7,368.72/11,048.34 = 3,154.73/x
  3. Step 3: Cross multiply
    7,368.72x = 11,048.34 × 3,154.73
  4. Step 4: Simplify right side
    7,368.72x = 34,854,474.41
  5. Step 5: Solve for x
    x = 34,854,474.41/7,368.72
  6. Step 6: Final answer
    x = 4,730.06

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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.