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Finding the Fourth Proportional to 58,847.58, 81,211.25 and 31,991.91

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Solution

The fourth proportional to 58,847.58, 81,211.25 and 31,991.91 is: 44,149.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,847.58 : 81,211.25 = 31,991.91 : x
  2. Step 2: Convert to fraction form
    58,847.58/81,211.25 = 31,991.91/x
  3. Step 3: Cross multiply
    58,847.58x = 81,211.25 × 31,991.91
  4. Step 4: Simplify right side
    58,847.58x = 2,598,102,841.03
  5. Step 5: Solve for x
    x = 2,598,102,841.03/58,847.58
  6. Step 6: Final answer
    x = 44,149.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.