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Finding the Fourth Proportional to 73,049.06, 100,807.72 and 39,515.06

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Solution

The fourth proportional to 73,049.06, 100,807.72 and 39,515.06 is: 54,530.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,049.06 : 100,807.72 = 39,515.06 : x
  2. Step 2: Convert to fraction form
    73,049.06/100,807.72 = 39,515.06/x
  3. Step 3: Cross multiply
    73,049.06x = 100,807.72 × 39,515.06
  4. Step 4: Simplify right side
    73,049.06x = 3,983,423,104.26
  5. Step 5: Solve for x
    x = 3,983,423,104.26/73,049.06
  6. Step 6: Final answer
    x = 54,530.79

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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.