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Finding the Fourth Proportional to 59,782.38, 89,672.61 and 20,366.94

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Solution

The fourth proportional to 59,782.38, 89,672.61 and 20,366.94 is: 30,550.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,782.38 : 89,672.61 = 20,366.94 : x
  2. Step 2: Convert to fraction form
    59,782.38/89,672.61 = 20,366.94/x
  3. Step 3: Cross multiply
    59,782.38x = 89,672.61 × 20,366.94
  4. Step 4: Simplify right side
    59,782.38x = 1,826,356,667.51
  5. Step 5: Solve for x
    x = 1,826,356,667.51/59,782.38
  6. Step 6: Final answer
    x = 30,550.08

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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.