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Finding the Fourth Proportional to 38,443.01, 57,664.89 and 13,483.65

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Solution

The fourth proportional to 38,443.01, 57,664.89 and 13,483.65 is: 20,225.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,443.01 : 57,664.89 = 13,483.65 : x
  2. Step 2: Convert to fraction form
    38,443.01/57,664.89 = 13,483.65/x
  3. Step 3: Cross multiply
    38,443.01x = 57,664.89 × 13,483.65
  4. Step 4: Simplify right side
    38,443.01x = 777,533,194.05
  5. Step 5: Solve for x
    x = 777,533,194.05/38,443.01
  6. Step 6: Final answer
    x = 20,225.61

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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.