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Finding the Fourth Proportional to 11,322.59, 15,621.93 and 6,843.08

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Solution

The fourth proportional to 11,322.59, 15,621.93 and 6,843.08 is: 9,441.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,322.59 : 15,621.93 = 6,843.08 : x
  2. Step 2: Convert to fraction form
    11,322.59/15,621.93 = 6,843.08/x
  3. Step 3: Cross multiply
    11,322.59x = 15,621.93 × 6,843.08
  4. Step 4: Simplify right side
    11,322.59x = 106,902,155.80
  5. Step 5: Solve for x
    x = 106,902,155.80/11,322.59
  6. Step 6: Final answer
    x = 9,441.50

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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.