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Finding the Fourth Proportional to 11,509.84, 15,883.44 and 6,794.08

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Solution

The fourth proportional to 11,509.84, 15,883.44 and 6,794.08 is: 9,375.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,509.84 : 15,883.44 = 6,794.08 : x
  2. Step 2: Convert to fraction form
    11,509.84/15,883.44 = 6,794.08/x
  3. Step 3: Cross multiply
    11,509.84x = 15,883.44 × 6,794.08
  4. Step 4: Simplify right side
    11,509.84x = 107,913,362.04
  5. Step 5: Solve for x
    x = 107,913,362.04/11,509.84
  6. Step 6: Final answer
    x = 9,375.75

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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.