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Finding the Fourth Proportional to 9,474.32, 13,069.32 and 8,807.12

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Solution

The fourth proportional to 9,474.32, 13,069.32 and 8,807.12 is: 12,148.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,474.32 : 13,069.32 = 8,807.12 : x
  2. Step 2: Convert to fraction form
    9,474.32/13,069.32 = 8,807.12/x
  3. Step 3: Cross multiply
    9,474.32x = 13,069.32 × 8,807.12
  4. Step 4: Simplify right side
    9,474.32x = 115,103,069.56
  5. Step 5: Solve for x
    x = 115,103,069.56/9,474.32
  6. Step 6: Final answer
    x = 12,148.95

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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.