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Finding the Fourth Proportional to 7,794.74, 11,710.20 and 7,375.16

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Solution

The fourth proportional to 7,794.74, 11,710.20 and 7,375.16 is: 11,079.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,794.74 : 11,710.20 = 7,375.16 : x
  2. Step 2: Convert to fraction form
    7,794.74/11,710.20 = 7,375.16/x
  3. Step 3: Cross multiply
    7,794.74x = 11,710.20 × 7,375.16
  4. Step 4: Simplify right side
    7,794.74x = 86,364,598.63
  5. Step 5: Solve for x
    x = 86,364,598.63/7,794.74
  6. Step 6: Final answer
    x = 11,079.86

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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.