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Finding the Fourth Proportional to 18,802.38, 28,201.20 and 6,151.08

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Solution

The fourth proportional to 18,802.38, 28,201.20 and 6,151.08 is: 9,225.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,802.38 : 28,201.20 = 6,151.08 : x
  2. Step 2: Convert to fraction form
    18,802.38/28,201.20 = 6,151.08/x
  3. Step 3: Cross multiply
    18,802.38x = 28,201.20 × 6,151.08
  4. Step 4: Simplify right side
    18,802.38x = 173,467,837.30
  5. Step 5: Solve for x
    x = 173,467,837.30/18,802.38
  6. Step 6: Final answer
    x = 9,225.84

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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.