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Finding the Fourth Proportional to 38,803.50, 53,548.83 and 22,039.74

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Solution

The fourth proportional to 38,803.50, 53,548.83 and 22,039.74 is: 30,414.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,803.50 : 53,548.83 = 22,039.74 : x
  2. Step 2: Convert to fraction form
    38,803.50/53,548.83 = 22,039.74/x
  3. Step 3: Cross multiply
    38,803.50x = 53,548.83 × 22,039.74
  4. Step 4: Simplify right side
    38,803.50x = 1,180,202,290.50
  5. Step 5: Solve for x
    x = 1,180,202,290.50/38,803.50
  6. Step 6: Final answer
    x = 30,414.84

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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.