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Finding the Fourth Proportional to 60,724.75, 91,089.87 and 18,601.77

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Solution

The fourth proportional to 60,724.75, 91,089.87 and 18,601.77 is: 27,903.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,724.75 : 91,089.87 = 18,601.77 : x
  2. Step 2: Convert to fraction form
    60,724.75/91,089.87 = 18,601.77/x
  3. Step 3: Cross multiply
    60,724.75x = 91,089.87 × 18,601.77
  4. Step 4: Simplify right side
    60,724.75x = 1,694,432,811.07
  5. Step 5: Solve for x
    x = 1,694,432,811.07/60,724.75
  6. Step 6: Final answer
    x = 27,903.50

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1.5x scale

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.