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Finding the Fourth Proportional to 34,860.68, 48,108.03 and 18,945.12

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Solution

The fourth proportional to 34,860.68, 48,108.03 and 18,945.12 is: 26,144.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,860.68 : 48,108.03 = 18,945.12 : x
  2. Step 2: Convert to fraction form
    34,860.68/48,108.03 = 18,945.12/x
  3. Step 3: Cross multiply
    34,860.68x = 48,108.03 × 18,945.12
  4. Step 4: Simplify right side
    34,860.68x = 911,412,401.31
  5. Step 5: Solve for x
    x = 911,412,401.31/34,860.68
  6. Step 6: Final answer
    x = 26,144.43

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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.