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Finding the Fourth Proportional to 48,614.88, 72,919.87 and 19,038.13

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Solution

The fourth proportional to 48,614.88, 72,919.87 and 19,038.13 is: 28,556.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,614.88 : 72,919.87 = 19,038.13 : x
  2. Step 2: Convert to fraction form
    48,614.88/72,919.87 = 19,038.13/x
  3. Step 3: Cross multiply
    48,614.88x = 72,919.87 × 19,038.13
  4. Step 4: Simplify right side
    48,614.88x = 1,388,257,964.64
  5. Step 5: Solve for x
    x = 1,388,257,964.64/48,614.88
  6. Step 6: Final answer
    x = 28,556.24

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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.