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Finding the Fourth Proportional to 65,672.32, 98,532.78 and 47,100.64

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Solution

The fourth proportional to 65,672.32, 98,532.78 and 47,100.64 is: 70,668.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,672.32 : 98,532.78 = 47,100.64 : x
  2. Step 2: Convert to fraction form
    65,672.32/98,532.78 = 47,100.64/x
  3. Step 3: Cross multiply
    65,672.32x = 98,532.78 × 47,100.64
  4. Step 4: Simplify right side
    65,672.32x = 4,640,956,998.98
  5. Step 5: Solve for x
    x = 4,640,956,998.98/65,672.32
  6. Step 6: Final answer
    x = 70,668.39

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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.