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Finding the Fourth Proportional to 87,672.77, 131,602.76 and 37,777.49

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Solution

The fourth proportional to 87,672.77, 131,602.76 and 37,777.49 is: 56,706.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,672.77 : 131,602.76 = 37,777.49 : x
  2. Step 2: Convert to fraction form
    87,672.77/131,602.76 = 37,777.49/x
  3. Step 3: Cross multiply
    87,672.77x = 131,602.76 × 37,777.49
  4. Step 4: Simplify right side
    87,672.77x = 4,971,621,760.98
  5. Step 5: Solve for x
    x = 4,971,621,760.98/87,672.77
  6. Step 6: Final answer
    x = 56,706.57

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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.