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Finding the Fourth Proportional to 69,993.77, 96,593.97 and 39,784.16

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Solution

The fourth proportional to 69,993.77, 96,593.97 and 39,784.16 is: 54,903.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,993.77 : 96,593.97 = 39,784.16 : x
  2. Step 2: Convert to fraction form
    69,993.77/96,593.97 = 39,784.16/x
  3. Step 3: Cross multiply
    69,993.77x = 96,593.97 × 39,784.16
  4. Step 4: Simplify right side
    69,993.77x = 3,842,910,124.40
  5. Step 5: Solve for x
    x = 3,842,910,124.40/69,993.77
  6. Step 6: Final answer
    x = 54,903.60

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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.