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Finding the Fourth Proportional to 64,608.80, 96,841.20 and 25,152.80

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Solution

The fourth proportional to 64,608.80, 96,841.20 and 25,152.80 is: 37,701.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,608.80 : 96,841.20 = 25,152.80 : x
  2. Step 2: Convert to fraction form
    64,608.80/96,841.20 = 25,152.80/x
  3. Step 3: Cross multiply
    64,608.80x = 96,841.20 × 25,152.80
  4. Step 4: Simplify right side
    64,608.80x = 2,435,827,335.36
  5. Step 5: Solve for x
    x = 2,435,827,335.36/64,608.80
  6. Step 6: Final answer
    x = 37,701.17

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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.