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Finding the Fourth Proportional to 28,032.33, 42,048.49 and 7,255.83

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Solution

The fourth proportional to 28,032.33, 42,048.49 and 7,255.83 is: 10,883.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,032.33 : 42,048.49 = 7,255.83 : x
  2. Step 2: Convert to fraction form
    28,032.33/42,048.49 = 7,255.83/x
  3. Step 3: Cross multiply
    28,032.33x = 42,048.49 × 7,255.83
  4. Step 4: Simplify right side
    28,032.33x = 305,096,632.23
  5. Step 5: Solve for x
    x = 305,096,632.23/28,032.33
  6. Step 6: Final answer
    x = 10,883.74

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Similar ratio
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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.