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Finding the Fourth Proportional to 66,612.64, 99,956.72 and 24,487.24

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Solution

The fourth proportional to 66,612.64, 99,956.72 and 24,487.24 is: 36,744.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,612.64 : 99,956.72 = 24,487.24 : x
  2. Step 2: Convert to fraction form
    66,612.64/99,956.72 = 24,487.24/x
  3. Step 3: Cross multiply
    66,612.64x = 99,956.72 × 24,487.24
  4. Step 4: Simplify right side
    66,612.64x = 2,447,664,192.25
  5. Step 5: Solve for x
    x = 2,447,664,192.25/66,612.64
  6. Step 6: Final answer
    x = 36,744.74

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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.