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Finding the Fourth Proportional to 45,908.64, 68,864.04 and 14,744.16

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Solution

The fourth proportional to 45,908.64, 68,864.04 and 14,744.16 is: 22,116.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,908.64 : 68,864.04 = 14,744.16 : x
  2. Step 2: Convert to fraction form
    45,908.64/68,864.04 = 14,744.16/x
  3. Step 3: Cross multiply
    45,908.64x = 68,864.04 × 14,744.16
  4. Step 4: Simplify right side
    45,908.64x = 1,015,342,424.01
  5. Step 5: Solve for x
    x = 1,015,342,424.01/45,908.64
  6. Step 6: Final answer
    x = 22,116.59

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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.