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Finding the Fourth Proportional to 45,359.70, 68,039.55 and 32,820.90

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Solution

The fourth proportional to 45,359.70, 68,039.55 and 32,820.90 is: 49,231.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,359.70 : 68,039.55 = 32,820.90 : x
  2. Step 2: Convert to fraction form
    45,359.70/68,039.55 = 32,820.90/x
  3. Step 3: Cross multiply
    45,359.70x = 68,039.55 × 32,820.90
  4. Step 4: Simplify right side
    45,359.70x = 2,233,119,266.60
  5. Step 5: Solve for x
    x = 2,233,119,266.60/45,359.70
  6. Step 6: Final answer
    x = 49,231.35

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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.