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Finding the Fourth Proportional to 64,612.80, 96,847.20 and 25,156.80

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Solution

The fourth proportional to 64,612.80, 96,847.20 and 25,156.80 is: 37,707.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,612.80 : 96,847.20 = 25,156.80 : x
  2. Step 2: Convert to fraction form
    64,612.80/96,847.20 = 25,156.80/x
  3. Step 3: Cross multiply
    64,612.80x = 96,847.20 × 25,156.80
  4. Step 4: Simplify right side
    64,612.80x = 2,436,365,640.96
  5. Step 5: Solve for x
    x = 2,436,365,640.96/64,612.80
  6. Step 6: Final answer
    x = 37,707.17

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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.