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Finding the Fourth Proportional to 9,365.38, 13,943.69 and 9,234.54

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Solution

The fourth proportional to 9,365.38, 13,943.69 and 9,234.54 is: 13,748.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,365.38 : 13,943.69 = 9,234.54 : x
  2. Step 2: Convert to fraction form
    9,365.38/13,943.69 = 9,234.54/x
  3. Step 3: Cross multiply
    9,365.38x = 13,943.69 × 9,234.54
  4. Step 4: Simplify right side
    9,365.38x = 128,763,563.05
  5. Step 5: Solve for x
    x = 128,763,563.05/9,365.38
  6. Step 6: Final answer
    x = 13,748.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.