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Finding the Fourth Proportional to 64,172.60, 96,257.10 and 29,112.20

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Solution

The fourth proportional to 64,172.60, 96,257.10 and 29,112.20 is: 43,667.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,172.60 : 96,257.10 = 29,112.20 : x
  2. Step 2: Convert to fraction form
    64,172.60/96,257.10 = 29,112.20/x
  3. Step 3: Cross multiply
    64,172.60x = 96,257.10 × 29,112.20
  4. Step 4: Simplify right side
    64,172.60x = 2,802,255,946.62
  5. Step 5: Solve for x
    x = 2,802,255,946.62/64,172.60
  6. Step 6: Final answer
    x = 43,667.48

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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.