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Finding the Fourth Proportional to 7,799.44, 11,698.80 and 5,612.08

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Solution

The fourth proportional to 7,799.44, 11,698.80 and 5,612.08 is: 8,417.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,799.44 : 11,698.80 = 5,612.08 : x
  2. Step 2: Convert to fraction form
    7,799.44/11,698.80 = 5,612.08/x
  3. Step 3: Cross multiply
    7,799.44x = 11,698.80 × 5,612.08
  4. Step 4: Simplify right side
    7,799.44x = 65,654,601.50
  5. Step 5: Solve for x
    x = 65,654,601.50/7,799.44
  6. Step 6: Final answer
    x = 8,417.86

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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.