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Finding the Fourth Proportional to 9,165.51, 13,745.70 and 3,541.89

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Solution

The fourth proportional to 9,165.51, 13,745.70 and 3,541.89 is: 5,311.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,165.51 : 13,745.70 = 3,541.89 : x
  2. Step 2: Convert to fraction form
    9,165.51/13,745.70 = 3,541.89/x
  3. Step 3: Cross multiply
    9,165.51x = 13,745.70 × 3,541.89
  4. Step 4: Simplify right side
    9,165.51x = 48,685,757.37
  5. Step 5: Solve for x
    x = 48,685,757.37/9,165.51
  6. Step 6: Final answer
    x = 5,311.84

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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.