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Finding the Fourth Proportional to 87,703.93, 131,526.09 and 28,524.91

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Solution

The fourth proportional to 87,703.93, 131,526.09 and 28,524.91 is: 42,777.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,703.93 : 131,526.09 = 28,524.91 : x
  2. Step 2: Convert to fraction form
    87,703.93/131,526.09 = 28,524.91/x
  3. Step 3: Cross multiply
    87,703.93x = 131,526.09 × 28,524.91
  4. Step 4: Simplify right side
    87,703.93x = 3,751,769,879.90
  5. Step 5: Solve for x
    x = 3,751,769,879.90/87,703.93
  6. Step 6: Final answer
    x = 42,777.67

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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.