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Finding the Fourth Proportional to 7,553.45, 11,306.83 and 7,442.74

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Solution

The fourth proportional to 7,553.45, 11,306.83 and 7,442.74 is: 11,141.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,553.45 : 11,306.83 = 7,442.74 : x
  2. Step 2: Convert to fraction form
    7,553.45/11,306.83 = 7,442.74/x
  3. Step 3: Cross multiply
    7,553.45x = 11,306.83 × 7,442.74
  4. Step 4: Simplify right side
    7,553.45x = 84,153,795.91
  5. Step 5: Solve for x
    x = 84,153,795.91/7,553.45
  6. Step 6: Final answer
    x = 11,141.11

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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.