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Finding the Fourth Proportional to 59,785.56, 89,620.02 and 28,642.68

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Solution

The fourth proportional to 59,785.56, 89,620.02 and 28,642.68 is: 42,936.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,785.56 : 89,620.02 = 28,642.68 : x
  2. Step 2: Convert to fraction form
    59,785.56/89,620.02 = 28,642.68/x
  3. Step 3: Cross multiply
    59,785.56x = 89,620.02 × 28,642.68
  4. Step 4: Simplify right side
    59,785.56x = 2,566,957,554.45
  5. Step 5: Solve for x
    x = 2,566,957,554.45/59,785.56
  6. Step 6: Final answer
    x = 42,936.08

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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.