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Finding the Fourth Proportional to 8,922.32, 12,299.98 and 6,261.48

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Solution

The fourth proportional to 8,922.32, 12,299.98 and 6,261.48 is: 8,631.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,922.32 : 12,299.98 = 6,261.48 : x
  2. Step 2: Convert to fraction form
    8,922.32/12,299.98 = 6,261.48/x
  3. Step 3: Cross multiply
    8,922.32x = 12,299.98 × 6,261.48
  4. Step 4: Simplify right side
    8,922.32x = 77,016,078.77
  5. Step 5: Solve for x
    x = 77,016,078.77/8,922.32
  6. Step 6: Final answer
    x = 8,631.84

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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.