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Finding the Fourth Proportional to 50,643.68, 69,887.86 and 27,982.60

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Solution

The fourth proportional to 50,643.68, 69,887.86 and 27,982.60 is: 38,615.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,643.68 : 69,887.86 = 27,982.60 : x
  2. Step 2: Convert to fraction form
    50,643.68/69,887.86 = 27,982.60/x
  3. Step 3: Cross multiply
    50,643.68x = 69,887.86 × 27,982.60
  4. Step 4: Simplify right side
    50,643.68x = 1,955,644,031.24
  5. Step 5: Solve for x
    x = 1,955,644,031.24/50,643.68
  6. Step 6: Final answer
    x = 38,615.76

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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.