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Finding the Fourth Proportional to 52,993.71, 73,131.90 and 29,120.39

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Solution

The fourth proportional to 52,993.71, 73,131.90 and 29,120.39 is: 40,186.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,993.71 : 73,131.90 = 29,120.39 : x
  2. Step 2: Convert to fraction form
    52,993.71/73,131.90 = 29,120.39/x
  3. Step 3: Cross multiply
    52,993.71x = 73,131.90 × 29,120.39
  4. Step 4: Simplify right side
    52,993.71x = 2,129,628,938.18
  5. Step 5: Solve for x
    x = 2,129,628,938.18/52,993.71
  6. Step 6: Final answer
    x = 40,186.45

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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.