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Finding the Fourth Proportional to 8,353.56, 11,535.69 and 5,374.56

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Solution

The fourth proportional to 8,353.56, 11,535.69 and 5,374.56 is: 7,421.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,353.56 : 11,535.69 = 5,374.56 : x
  2. Step 2: Convert to fraction form
    8,353.56/11,535.69 = 5,374.56/x
  3. Step 3: Cross multiply
    8,353.56x = 11,535.69 × 5,374.56
  4. Step 4: Simplify right side
    8,353.56x = 61,999,258.05
  5. Step 5: Solve for x
    x = 61,999,258.05/8,353.56
  6. Step 6: Final answer
    x = 7,421.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.