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Finding the Fourth Proportional to 20,374.47, 30,554.19 and 7,044.09

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Solution

The fourth proportional to 20,374.47, 30,554.19 and 7,044.09 is: 10,563.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,374.47 : 30,554.19 = 7,044.09 : x
  2. Step 2: Convert to fraction form
    20,374.47/30,554.19 = 7,044.09/x
  3. Step 3: Cross multiply
    20,374.47x = 30,554.19 × 7,044.09
  4. Step 4: Simplify right side
    20,374.47x = 215,226,464.24
  5. Step 5: Solve for x
    x = 215,226,464.24/20,374.47
  6. Step 6: Final answer
    x = 10,563.54

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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.