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Finding the Fourth Proportional to 64,506.60, 96,630.30 and 36,772.20

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Solution

The fourth proportional to 64,506.60, 96,630.30 and 36,772.20 is: 55,084.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,506.60 : 96,630.30 = 36,772.20 : x
  2. Step 2: Convert to fraction form
    64,506.60/96,630.30 = 36,772.20/x
  3. Step 3: Cross multiply
    64,506.60x = 96,630.30 × 36,772.20
  4. Step 4: Simplify right side
    64,506.60x = 3,553,308,717.66
  5. Step 5: Solve for x
    x = 3,553,308,717.66/64,506.60
  6. Step 6: Final answer
    x = 55,084.42

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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.