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Finding the Fourth Proportional to 7,666.55, 11,504.29 and 3,223.89

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Solution

The fourth proportional to 7,666.55, 11,504.29 and 3,223.89 is: 4,837.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,666.55 : 11,504.29 = 3,223.89 : x
  2. Step 2: Convert to fraction form
    7,666.55/11,504.29 = 3,223.89/x
  3. Step 3: Cross multiply
    7,666.55x = 11,504.29 × 3,223.89
  4. Step 4: Simplify right side
    7,666.55x = 37,088,612.66
  5. Step 5: Solve for x
    x = 37,088,612.66/7,666.55
  6. Step 6: Final answer
    x = 4,837.72

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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.