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Finding the Fourth Proportional to 70,073.99, 96,704.36 and 39,858.53

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Solution

The fourth proportional to 70,073.99, 96,704.36 and 39,858.53 is: 55,006.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,073.99 : 96,704.36 = 39,858.53 : x
  2. Step 2: Convert to fraction form
    70,073.99/96,704.36 = 39,858.53/x
  3. Step 3: Cross multiply
    70,073.99x = 96,704.36 × 39,858.53
  4. Step 4: Simplify right side
    70,073.99x = 3,854,493,532.71
  5. Step 5: Solve for x
    x = 3,854,493,532.71/70,073.99
  6. Step 6: Final answer
    x = 55,006.06

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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.