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Finding the Fourth Proportional to 87,385.98, 130,968.99 and 37,406.94

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Solution

The fourth proportional to 87,385.98, 130,968.99 and 37,406.94 is: 56,063.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,385.98 : 130,968.99 = 37,406.94 : x
  2. Step 2: Convert to fraction form
    87,385.98/130,968.99 = 37,406.94/x
  3. Step 3: Cross multiply
    87,385.98x = 130,968.99 × 37,406.94
  4. Step 4: Simplify right side
    87,385.98x = 4,899,149,150.79
  5. Step 5: Solve for x
    x = 4,899,149,150.79/87,385.98
  6. Step 6: Final answer
    x = 56,063.33

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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.