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Finding the Fourth Proportional to 30,086.60, 41,518.04 and 16,657.60

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Solution

The fourth proportional to 30,086.60, 41,518.04 and 16,657.60 is: 22,986.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,086.60 : 41,518.04 = 16,657.60 : x
  2. Step 2: Convert to fraction form
    30,086.60/41,518.04 = 16,657.60/x
  3. Step 3: Cross multiply
    30,086.60x = 41,518.04 × 16,657.60
  4. Step 4: Simplify right side
    30,086.60x = 691,590,903.10
  5. Step 5: Solve for x
    x = 691,590,903.10/30,086.60
  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.