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Finding the Fourth Proportional to 28,227.36, 42,341.04 and 7,451.04

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Solution

The fourth proportional to 28,227.36, 42,341.04 and 7,451.04 is: 11,176.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,227.36 : 42,341.04 = 7,451.04 : x
  2. Step 2: Convert to fraction form
    28,227.36/42,341.04 = 7,451.04/x
  3. Step 3: Cross multiply
    28,227.36x = 42,341.04 × 7,451.04
  4. Step 4: Simplify right side
    28,227.36x = 315,484,782.68
  5. Step 5: Solve for x
    x = 315,484,782.68/28,227.36
  6. Step 6: Final answer
    x = 11,176.56

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Half scale
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Double scale
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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.