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Finding the Fourth Proportional to 7,808.61, 11,710.96 and 3,065.73

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Solution

The fourth proportional to 7,808.61, 11,710.96 and 3,065.73 is: 4,597.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,808.61 : 11,710.96 = 3,065.73 : x
  2. Step 2: Convert to fraction form
    7,808.61/11,710.96 = 3,065.73/x
  3. Step 3: Cross multiply
    7,808.61x = 11,710.96 × 3,065.73
  4. Step 4: Simplify right side
    7,808.61x = 35,902,641.40
  5. Step 5: Solve for x
    x = 35,902,641.40/7,808.61
  6. Step 6: Final answer
    x = 4,597.83

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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.