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Finding the Fourth Proportional to 11,279.62, 15,564.81 and 6,562.99

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Solution

The fourth proportional to 11,279.62, 15,564.81 and 6,562.99 is: 9,056.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,279.62 : 15,564.81 = 6,562.99 : x
  2. Step 2: Convert to fraction form
    11,279.62/15,564.81 = 6,562.99/x
  3. Step 3: Cross multiply
    11,279.62x = 15,564.81 × 6,562.99
  4. Step 4: Simplify right side
    11,279.62x = 102,151,699.53
  5. Step 5: Solve for x
    x = 102,151,699.53/11,279.62
  6. Step 6: Final answer
    x = 9,056.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.