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Finding the Fourth Proportional to 18,798.24, 28,180.32 and 8,927.52

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Solution

The fourth proportional to 18,798.24, 28,180.32 and 8,927.52 is: 13,383.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,798.24 : 28,180.32 = 8,927.52 : x
  2. Step 2: Convert to fraction form
    18,798.24/28,180.32 = 8,927.52/x
  3. Step 3: Cross multiply
    18,798.24x = 28,180.32 × 8,927.52
  4. Step 4: Simplify right side
    18,798.24x = 251,580,370.41
  5. Step 5: Solve for x
    x = 251,580,370.41/18,798.24
  6. Step 6: Final answer
    x = 13,383.19

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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.