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Finding the Fourth Proportional to 11,046.60, 16,569.90 and 5,214.60

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Solution

The fourth proportional to 11,046.60, 16,569.90 and 5,214.60 is: 7,821.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,046.60 : 16,569.90 = 5,214.60 : x
  2. Step 2: Convert to fraction form
    11,046.60/16,569.90 = 5,214.60/x
  3. Step 3: Cross multiply
    11,046.60x = 16,569.90 × 5,214.60
  4. Step 4: Simplify right side
    11,046.60x = 86,405,400.54
  5. Step 5: Solve for x
    x = 86,405,400.54/11,046.60
  6. Step 6: Final answer
    x = 7,821.90

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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.