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Finding the Fourth Proportional to 48,647.72, 72,965.82 and 15,366.44

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Solution

The fourth proportional to 48,647.72, 72,965.82 and 15,366.44 is: 23,047.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,647.72 : 72,965.82 = 15,366.44 : x
  2. Step 2: Convert to fraction form
    48,647.72/72,965.82 = 15,366.44/x
  3. Step 3: Cross multiply
    48,647.72x = 72,965.82 × 15,366.44
  4. Step 4: Simplify right side
    48,647.72x = 1,121,224,895.08
  5. Step 5: Solve for x
    x = 1,121,224,895.08/48,647.72
  6. Step 6: Final answer
    x = 23,047.84

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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.