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Finding the Fourth Proportional to 45,908.16, 68,861.80 and 14,743.40

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Solution

The fourth proportional to 45,908.16, 68,861.80 and 14,743.40 is: 22,114.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,908.16 : 68,861.80 = 14,743.40 : x
  2. Step 2: Convert to fraction form
    45,908.16/68,861.80 = 14,743.40/x
  3. Step 3: Cross multiply
    45,908.16x = 68,861.80 × 14,743.40
  4. Step 4: Simplify right side
    45,908.16x = 1,015,257,062.12
  5. Step 5: Solve for x
    x = 1,015,257,062.12/45,908.16
  6. Step 6: Final answer
    x = 22,114.96

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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.