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Finding the Fourth Proportional to 9,199.44, 12,695.34 and 5,007.72

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Solution

The fourth proportional to 9,199.44, 12,695.34 and 5,007.72 is: 6,910.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,199.44 : 12,695.34 = 5,007.72 : x
  2. Step 2: Convert to fraction form
    9,199.44/12,695.34 = 5,007.72/x
  3. Step 3: Cross multiply
    9,199.44x = 12,695.34 × 5,007.72
  4. Step 4: Simplify right side
    9,199.44x = 63,574,708.02
  5. Step 5: Solve for x
    x = 63,574,708.02/9,199.44
  6. Step 6: Final answer
    x = 6,910.72

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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.