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Finding the Fourth Proportional to 73,393.28, 101,282.64 and 39,859.04

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Solution

The fourth proportional to 73,393.28, 101,282.64 and 39,859.04 is: 55,005.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,393.28 : 101,282.64 = 39,859.04 : x
  2. Step 2: Convert to fraction form
    73,393.28/101,282.64 = 39,859.04/x
  3. Step 3: Cross multiply
    73,393.28x = 101,282.64 × 39,859.04
  4. Step 4: Simplify right side
    73,393.28x = 4,037,028,799.07
  5. Step 5: Solve for x
    x = 4,037,028,799.07/73,393.28
  6. Step 6: Final answer
    x = 55,005.43

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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.