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Finding the Fourth Proportional to 73,005.69, 109,508.55 and 25,657.95

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Solution

The fourth proportional to 73,005.69, 109,508.55 and 25,657.95 is: 38,486.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,005.69 : 109,508.55 = 25,657.95 : x
  2. Step 2: Convert to fraction form
    73,005.69/109,508.55 = 25,657.95/x
  3. Step 3: Cross multiply
    73,005.69x = 109,508.55 × 25,657.95
  4. Step 4: Simplify right side
    73,005.69x = 2,809,764,900.47
  5. Step 5: Solve for x
    x = 2,809,764,900.47/73,005.69
  6. Step 6: Final answer
    x = 38,486.93

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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.