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Finding the Fourth Proportional to 7,614.58, 11,412.76 and 4,329.83

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Solution

The fourth proportional to 7,614.58, 11,412.76 and 4,329.83 is: 6,489.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,614.58 : 11,412.76 = 4,329.83 : x
  2. Step 2: Convert to fraction form
    7,614.58/11,412.76 = 4,329.83/x
  3. Step 3: Cross multiply
    7,614.58x = 11,412.76 × 4,329.83
  4. Step 4: Simplify right side
    7,614.58x = 49,415,310.63
  5. Step 5: Solve for x
    x = 49,415,310.63/7,614.58
  6. Step 6: Final answer
    x = 6,489.56

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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.