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Finding the Fourth Proportional to 45,803.34, 68,559.21 and 39,504.78

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Solution

The fourth proportional to 45,803.34, 68,559.21 and 39,504.78 is: 59,131.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,803.34 : 68,559.21 = 39,504.78 : x
  2. Step 2: Convert to fraction form
    45,803.34/68,559.21 = 39,504.78/x
  3. Step 3: Cross multiply
    45,803.34x = 68,559.21 × 39,504.78
  4. Step 4: Simplify right side
    45,803.34x = 2,708,416,508.02
  5. Step 5: Solve for x
    x = 2,708,416,508.02/45,803.34
  6. Step 6: Final answer
    x = 59,131.42

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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.