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Finding the Fourth Proportional to 90,471.86, 135,712.58 and 23,910.17

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Solution

The fourth proportional to 90,471.86, 135,712.58 and 23,910.17 is: 35,866.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,471.86 : 135,712.58 = 23,910.17 : x
  2. Step 2: Convert to fraction form
    90,471.86/135,712.58 = 23,910.17/x
  3. Step 3: Cross multiply
    90,471.86x = 135,712.58 × 23,910.17
  4. Step 4: Simplify right side
    90,471.86x = 3,244,911,430.37
  5. Step 5: Solve for x
    x = 3,244,911,430.37/90,471.86
  6. Step 6: Final answer
    x = 35,866.53

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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.