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Finding the Fourth Proportional to 55,059.18, 75,982.59 and 29,908.68

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Solution

The fourth proportional to 55,059.18, 75,982.59 and 29,908.68 is: 41,274.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,059.18 : 75,982.59 = 29,908.68 : x
  2. Step 2: Convert to fraction form
    55,059.18/75,982.59 = 29,908.68/x
  3. Step 3: Cross multiply
    55,059.18x = 75,982.59 × 29,908.68
  4. Step 4: Simplify right side
    55,059.18x = 2,272,538,969.88
  5. Step 5: Solve for x
    x = 2,272,538,969.88/55,059.18
  6. Step 6: Final answer
    x = 41,274.48

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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.