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Finding the Fourth Proportional to 19,116.40, 28,674.60 and 16,297.60

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Solution

The fourth proportional to 19,116.40, 28,674.60 and 16,297.60 is: 24,446.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,116.40 : 28,674.60 = 16,297.60 : x
  2. Step 2: Convert to fraction form
    19,116.40/28,674.60 = 16,297.60/x
  3. Step 3: Cross multiply
    19,116.40x = 28,674.60 × 16,297.60
  4. Step 4: Simplify right side
    19,116.40x = 467,327,160.96
  5. Step 5: Solve for x
    x = 467,327,160.96/19,116.40
  6. Step 6: Final answer
    x = 24,446.40

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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.