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Finding the Fourth Proportional to 70,190.83, 96,868.02 and 39,571.48

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Solution

The fourth proportional to 70,190.83, 96,868.02 and 39,571.48 is: 54,611.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,190.83 : 96,868.02 = 39,571.48 : x
  2. Step 2: Convert to fraction form
    70,190.83/96,868.02 = 39,571.48/x
  3. Step 3: Cross multiply
    70,190.83x = 96,868.02 × 39,571.48
  4. Step 4: Simplify right side
    70,190.83x = 3,833,210,916.07
  5. Step 5: Solve for x
    x = 3,833,210,916.07/70,190.83
  6. Step 6: Final answer
    x = 54,611.28

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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.