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Finding the Fourth Proportional to 60,555.94, 90,833.94 and 28,958.54

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Solution

The fourth proportional to 60,555.94, 90,833.94 and 28,958.54 is: 43,437.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,555.94 : 90,833.94 = 28,958.54 : x
  2. Step 2: Convert to fraction form
    60,555.94/90,833.94 = 28,958.54/x
  3. Step 3: Cross multiply
    60,555.94x = 90,833.94 × 28,958.54
  4. Step 4: Simplify right side
    60,555.94x = 2,630,417,830.68
  5. Step 5: Solve for x
    x = 2,630,417,830.68/60,555.94
  6. Step 6: Final answer
    x = 43,437.82

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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.