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Finding the Fourth Proportional to 7,666.75, 11,500.17 and 3,052.99

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Solution

The fourth proportional to 7,666.75, 11,500.17 and 3,052.99 is: 4,579.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,666.75 : 11,500.17 = 3,052.99 : x
  2. Step 2: Convert to fraction form
    7,666.75/11,500.17 = 3,052.99/x
  3. Step 3: Cross multiply
    7,666.75x = 11,500.17 × 3,052.99
  4. Step 4: Simplify right side
    7,666.75x = 35,109,904.01
  5. Step 5: Solve for x
    x = 35,109,904.01/7,666.75
  6. Step 6: Final answer
    x = 4,579.50

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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.