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Finding the Fourth Proportional to 70,213.66, 96,839.07 and 53,043.28

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Solution

The fourth proportional to 70,213.66, 96,839.07 and 53,043.28 is: 73,157.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,213.66 : 96,839.07 = 53,043.28 : x
  2. Step 2: Convert to fraction form
    70,213.66/96,839.07 = 53,043.28/x
  3. Step 3: Cross multiply
    70,213.66x = 96,839.07 × 53,043.28
  4. Step 4: Simplify right side
    70,213.66x = 5,136,661,904.95
  5. Step 5: Solve for x
    x = 5,136,661,904.95/70,213.66
  6. Step 6: Final answer
    x = 73,157.59

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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.