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Finding the Fourth Proportional to 75,995.38, 104,873.50 and 42,003.50

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Solution

The fourth proportional to 75,995.38, 104,873.50 and 42,003.50 is: 57,964.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,995.38 : 104,873.50 = 42,003.50 : x
  2. Step 2: Convert to fraction form
    75,995.38/104,873.50 = 42,003.50/x
  3. Step 3: Cross multiply
    75,995.38x = 104,873.50 × 42,003.50
  4. Step 4: Simplify right side
    75,995.38x = 4,405,054,057.25
  5. Step 5: Solve for x
    x = 4,405,054,057.25/75,995.38
  6. Step 6: Final answer
    x = 57,964.76

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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.