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Finding the Fourth Proportional to 70,192.90, 96,866.21 and 38,361.79

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Solution

The fourth proportional to 70,192.90, 96,866.21 and 38,361.79 is: 52,939.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,192.90 : 96,866.21 = 38,361.79 : x
  2. Step 2: Convert to fraction form
    70,192.90/96,866.21 = 38,361.79/x
  3. Step 3: Cross multiply
    70,192.90x = 96,866.21 × 38,361.79
  4. Step 4: Simplify right side
    70,192.90x = 3,715,960,529.98
  5. Step 5: Solve for x
    x = 3,715,960,529.98/70,192.90
  6. Step 6: Final answer
    x = 52,939.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.