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Finding the Fourth Proportional to 60,474.86, 90,712.57 and 18,355.31

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Solution

The fourth proportional to 60,474.86, 90,712.57 and 18,355.31 is: 27,533.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,474.86 : 90,712.57 = 18,355.31 : x
  2. Step 2: Convert to fraction form
    60,474.86/90,712.57 = 18,355.31/x
  3. Step 3: Cross multiply
    60,474.86x = 90,712.57 × 18,355.31
  4. Step 4: Simplify right side
    60,474.86x = 1,665,056,889.68
  5. Step 5: Solve for x
    x = 1,665,056,889.68/60,474.86
  6. Step 6: Final answer
    x = 27,533.04

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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.