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Finding the Fourth Proportional to 64,510.20, 96,765.30 and 37,828.80

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Solution

The fourth proportional to 64,510.20, 96,765.30 and 37,828.80 is: 56,743.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,510.20 : 96,765.30 = 37,828.80 : x
  2. Step 2: Convert to fraction form
    64,510.20/96,765.30 = 37,828.80/x
  3. Step 3: Cross multiply
    64,510.20x = 96,765.30 × 37,828.80
  4. Step 4: Simplify right side
    64,510.20x = 3,660,515,180.64
  5. Step 5: Solve for x
    x = 3,660,515,180.64/64,510.20
  6. Step 6: Final answer
    x = 56,743.20

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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.