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Finding the Fourth Proportional to 55,207.98, 76,186.98 and 30,057.48

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Solution

The fourth proportional to 55,207.98, 76,186.98 and 30,057.48 is: 41,479.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,207.98 : 76,186.98 = 30,057.48 : x
  2. Step 2: Convert to fraction form
    55,207.98/76,186.98 = 30,057.48/x
  3. Step 3: Cross multiply
    55,207.98x = 76,186.98 × 30,057.48
  4. Step 4: Simplify right side
    55,207.98x = 2,289,988,627.61
  5. Step 5: Solve for x
    x = 2,289,988,627.61/55,207.98
  6. Step 6: Final answer
    x = 41,479.30

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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.