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Finding the Fourth Proportional to 38,574.40, 57,764.40 and 36,824.80

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Solution

The fourth proportional to 38,574.40, 57,764.40 and 36,824.80 is: 55,144.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,574.40 : 57,764.40 = 36,824.80 : x
  2. Step 2: Convert to fraction form
    38,574.40/57,764.40 = 36,824.80/x
  3. Step 3: Cross multiply
    38,574.40x = 57,764.40 × 36,824.80
  4. Step 4: Simplify right side
    38,574.40x = 2,127,162,477.12
  5. Step 5: Solve for x
    x = 2,127,162,477.12/38,574.40
  6. Step 6: Final answer
    x = 55,144.41

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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.