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Finding the Fourth Proportional to 30,086.61, 41,518.02 and 16,657.62

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Solution

The fourth proportional to 30,086.61, 41,518.02 and 16,657.62 is: 22,986.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,086.61 : 41,518.02 = 16,657.62 : x
  2. Step 2: Convert to fraction form
    30,086.61/41,518.02 = 16,657.62/x
  3. Step 3: Cross multiply
    30,086.61x = 41,518.02 × 16,657.62
  4. Step 4: Simplify right side
    30,086.61x = 691,591,400.31
  5. Step 5: Solve for x
    x = 691,591,400.31/30,086.61
  6. Step 6: Final answer
    x = 22,986.68

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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.