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Finding the Fourth Proportional to 48,881.80, 73,409.10 and 37,815.40

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Solution

The fourth proportional to 48,881.80, 73,409.10 and 37,815.40 is: 56,789.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,881.80 : 73,409.10 = 37,815.40 : x
  2. Step 2: Convert to fraction form
    48,881.80/73,409.10 = 37,815.40/x
  3. Step 3: Cross multiply
    48,881.80x = 73,409.10 × 37,815.40
  4. Step 4: Simplify right side
    48,881.80x = 2,775,994,480.14
  5. Step 5: Solve for x
    x = 2,775,994,480.14/48,881.80
  6. Step 6: Final answer
    x = 56,789.94

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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.