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Finding the Fourth Proportional to 48,691.10, 72,894.30 and 44,021.86

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Solution

The fourth proportional to 48,691.10, 72,894.30 and 44,021.86 is: 65,904.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,691.10 : 72,894.30 = 44,021.86 : x
  2. Step 2: Convert to fraction form
    48,691.10/72,894.30 = 44,021.86/x
  3. Step 3: Cross multiply
    48,691.10x = 72,894.30 × 44,021.86
  4. Step 4: Simplify right side
    48,691.10x = 3,208,942,322.08
  5. Step 5: Solve for x
    x = 3,208,942,322.08/48,691.10
  6. Step 6: Final answer
    x = 65,904.08

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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.