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Finding the Fourth Proportional to 18,482.64, 27,724.08 and 7,390.26

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Solution

The fourth proportional to 18,482.64, 27,724.08 and 7,390.26 is: 11,085.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,482.64 : 27,724.08 = 7,390.26 : x
  2. Step 2: Convert to fraction form
    18,482.64/27,724.08 = 7,390.26/x
  3. Step 3: Cross multiply
    18,482.64x = 27,724.08 × 7,390.26
  4. Step 4: Simplify right side
    18,482.64x = 204,888,159.46
  5. Step 5: Solve for x
    x = 204,888,159.46/18,482.64
  6. Step 6: Final answer
    x = 11,085.44

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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.