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Finding the Fourth Proportional to 60,873.50, 91,324.83 and 19,320.50

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Solution

The fourth proportional to 60,873.50, 91,324.83 and 19,320.50 is: 28,985.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,873.50 : 91,324.83 = 19,320.50 : x
  2. Step 2: Convert to fraction form
    60,873.50/91,324.83 = 19,320.50/x
  3. Step 3: Cross multiply
    60,873.50x = 91,324.83 × 19,320.50
  4. Step 4: Simplify right side
    60,873.50x = 1,764,441,378.02
  5. Step 5: Solve for x
    x = 1,764,441,378.02/60,873.50
  6. Step 6: Final answer
    x = 28,985.38

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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.