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Finding the Fourth Proportional to 60,935.87, 91,370.31 and 18,804.46

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Solution

The fourth proportional to 60,935.87, 91,370.31 and 18,804.46 is: 28,196.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,935.87 : 91,370.31 = 18,804.46 : x
  2. Step 2: Convert to fraction form
    60,935.87/91,370.31 = 18,804.46/x
  3. Step 3: Cross multiply
    60,935.87x = 91,370.31 × 18,804.46
  4. Step 4: Simplify right side
    60,935.87x = 1,718,169,339.58
  5. Step 5: Solve for x
    x = 1,718,169,339.58/60,935.87
  6. Step 6: Final answer
    x = 28,196.35

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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.