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Finding the Fourth Proportional to 60,934.87, 91,368.81 and 18,803.46

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Solution

The fourth proportional to 60,934.87, 91,368.81 and 18,803.46 is: 28,194.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,934.87 : 91,368.81 = 18,803.46 : x
  2. Step 2: Convert to fraction form
    60,934.87/91,368.81 = 18,803.46/x
  3. Step 3: Cross multiply
    60,934.87x = 91,368.81 × 18,803.46
  4. Step 4: Simplify right side
    60,934.87x = 1,718,049,764.08
  5. Step 5: Solve for x
    x = 1,718,049,764.08/60,934.87
  6. Step 6: Final answer
    x = 28,194.85

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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.