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Finding the Fourth Proportional to 7,799.10, 11,702.60 and 3,416.60

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Solution

The fourth proportional to 7,799.10, 11,702.60 and 3,416.60 is: 5,126.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,799.10 : 11,702.60 = 3,416.60 : x
  2. Step 2: Convert to fraction form
    7,799.10/11,702.60 = 3,416.60/x
  3. Step 3: Cross multiply
    7,799.10x = 11,702.60 × 3,416.60
  4. Step 4: Simplify right side
    7,799.10x = 39,983,103.16
  5. Step 5: Solve for x
    x = 39,983,103.16/7,799.10
  6. Step 6: Final answer
    x = 5,126.63

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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.