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Finding the Fourth Proportional to 58,321.98, 87,493.86 and 40,385.70

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Solution

The fourth proportional to 58,321.98, 87,493.86 and 40,385.70 is: 60,586.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,321.98 : 87,493.86 = 40,385.70 : x
  2. Step 2: Convert to fraction form
    58,321.98/87,493.86 = 40,385.70/x
  3. Step 3: Cross multiply
    58,321.98x = 87,493.86 × 40,385.70
  4. Step 4: Simplify right side
    58,321.98x = 3,533,500,781.80
  5. Step 5: Solve for x
    x = 3,533,500,781.80/58,321.98
  6. Step 6: Final answer
    x = 60,586.09

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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.