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Finding the Fourth Proportional to 6,615.19, 9,922.72 and 2,235.72

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Solution

The fourth proportional to 6,615.19, 9,922.72 and 2,235.72 is: 3,353.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,615.19 : 9,922.72 = 2,235.72 : x
  2. Step 2: Convert to fraction form
    6,615.19/9,922.72 = 2,235.72/x
  3. Step 3: Cross multiply
    6,615.19x = 9,922.72 × 2,235.72
  4. Step 4: Simplify right side
    6,615.19x = 22,184,423.56
  5. Step 5: Solve for x
    x = 22,184,423.56/6,615.19
  6. Step 6: Final answer
    x = 3,353.56

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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.