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Finding the Fourth Proportional to 8,601.88, 12,896.32 and 4,440.08

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Solution

The fourth proportional to 8,601.88, 12,896.32 and 4,440.08 is: 6,656.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,601.88 : 12,896.32 = 4,440.08 : x
  2. Step 2: Convert to fraction form
    8,601.88/12,896.32 = 4,440.08/x
  3. Step 3: Cross multiply
    8,601.88x = 12,896.32 × 4,440.08
  4. Step 4: Simplify right side
    8,601.88x = 57,260,692.51
  5. Step 5: Solve for x
    x = 57,260,692.51/8,601.88
  6. Step 6: Final answer
    x = 6,656.76

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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.