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Finding the Fourth Proportional to 8,902.88, 12,285.20 and 5,546.08

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Solution

The fourth proportional to 8,902.88, 12,285.20 and 5,546.08 is: 7,653.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,902.88 : 12,285.20 = 5,546.08 : x
  2. Step 2: Convert to fraction form
    8,902.88/12,285.20 = 5,546.08/x
  3. Step 3: Cross multiply
    8,902.88x = 12,285.20 × 5,546.08
  4. Step 4: Simplify right side
    8,902.88x = 68,134,702.02
  5. Step 5: Solve for x
    x = 68,134,702.02/8,902.88
  6. Step 6: Final answer
    x = 7,653.11

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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.