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Finding the Fourth Proportional to 7,791.32, 10,749.50 and 4,604.72

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Solution

The fourth proportional to 7,791.32, 10,749.50 and 4,604.72 is: 6,353.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,791.32 : 10,749.50 = 4,604.72 : x
  2. Step 2: Convert to fraction form
    7,791.32/10,749.50 = 4,604.72/x
  3. Step 3: Cross multiply
    7,791.32x = 10,749.50 × 4,604.72
  4. Step 4: Simplify right side
    7,791.32x = 49,498,360.87
  5. Step 5: Solve for x
    x = 49,498,360.87/7,791.32
  6. Step 6: Final answer
    x = 6,353.01

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1.5x scale

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.