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Finding the Fourth Proportional to 52,991.88, 73,130.76 and 29,120.82

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Solution

The fourth proportional to 52,991.88, 73,130.76 and 29,120.82 is: 40,187.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,991.88 : 73,130.76 = 29,120.82 : x
  2. Step 2: Convert to fraction form
    52,991.88/73,130.76 = 29,120.82/x
  3. Step 3: Cross multiply
    52,991.88x = 73,130.76 × 29,120.82
  4. Step 4: Simplify right side
    52,991.88x = 2,129,627,698.42
  5. Step 5: Solve for x
    x = 2,129,627,698.42/52,991.88
  6. Step 6: Final answer
    x = 40,187.81

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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.