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Finding the Fourth Proportional to 7,442.60, 11,155.22 and 5,476.60

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Solution

The fourth proportional to 7,442.60, 11,155.22 and 5,476.60 is: 8,208.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,442.60 : 11,155.22 = 5,476.60 : x
  2. Step 2: Convert to fraction form
    7,442.60/11,155.22 = 5,476.60/x
  3. Step 3: Cross multiply
    7,442.60x = 11,155.22 × 5,476.60
  4. Step 4: Simplify right side
    7,442.60x = 61,092,677.85
  5. Step 5: Solve for x
    x = 61,092,677.85/7,442.60
  6. Step 6: Final answer
    x = 8,208.51

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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.