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Finding the Fourth Proportional to 45,908.20, 68,862.30 and 45,908.20

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Solution

The fourth proportional to 45,908.20, 68,862.30 and 45,908.20 is: 68,862.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,908.20 : 68,862.30 = 45,908.20 : x
  2. Step 2: Convert to fraction form
    45,908.20/68,862.30 = 45,908.20/x
  3. Step 3: Cross multiply
    45,908.20x = 68,862.30 × 45,908.20
  4. Step 4: Simplify right side
    45,908.20x = 3,161,344,240.86
  5. Step 5: Solve for x
    x = 3,161,344,240.86/45,908.20
  6. Step 6: Final answer
    x = 68,862.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.