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Finding the Fourth Proportional to 58,221.83, 80,348.40 and 32,728.70

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Solution

The fourth proportional to 58,221.83, 80,348.40 and 32,728.70 is: 45,166.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,221.83 : 80,348.40 = 32,728.70 : x
  2. Step 2: Convert to fraction form
    58,221.83/80,348.40 = 32,728.70/x
  3. Step 3: Cross multiply
    58,221.83x = 80,348.40 × 32,728.70
  4. Step 4: Simplify right side
    58,221.83x = 2,629,698,879.95
  5. Step 5: Solve for x
    x = 2,629,698,879.95/58,221.83
  6. Step 6: Final answer
    x = 45,166.89

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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.