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Finding the Fourth Proportional to 18,592.26, 27,888.40 and 11,671.62

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Solution

The fourth proportional to 18,592.26, 27,888.40 and 11,671.62 is: 17,507.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,592.26 : 27,888.40 = 11,671.62 : x
  2. Step 2: Convert to fraction form
    18,592.26/27,888.40 = 11,671.62/x
  3. Step 3: Cross multiply
    18,592.26x = 27,888.40 × 11,671.62
  4. Step 4: Simplify right side
    18,592.26x = 325,502,807.21
  5. Step 5: Solve for x
    x = 325,502,807.21/18,592.26
  6. Step 6: Final answer
    x = 17,507.44

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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.