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Finding the Fourth Proportional to 64,615.20, 96,937.20 and 25,168.80

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Solution

The fourth proportional to 64,615.20, 96,937.20 and 25,168.80 is: 37,758.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,615.20 : 96,937.20 = 25,168.80 : x
  2. Step 2: Convert to fraction form
    64,615.20/96,937.20 = 25,168.80/x
  3. Step 3: Cross multiply
    64,615.20x = 96,937.20 × 25,168.80
  4. Step 4: Simplify right side
    64,615.20x = 2,439,792,999.36
  5. Step 5: Solve for x
    x = 2,439,792,999.36/64,615.20
  6. Step 6: Final answer
    x = 37,758.81

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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.