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Finding the Fourth Proportional to 18,175.20, 25,083.84 and 10,109.64

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Solution

The fourth proportional to 18,175.20, 25,083.84 and 10,109.64 is: 13,952.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,175.20 : 25,083.84 = 10,109.64 : x
  2. Step 2: Convert to fraction form
    18,175.20/25,083.84 = 10,109.64/x
  3. Step 3: Cross multiply
    18,175.20x = 25,083.84 × 10,109.64
  4. Step 4: Simplify right side
    18,175.20x = 253,588,592.22
  5. Step 5: Solve for x
    x = 253,588,592.22/18,175.20
  6. Step 6: Final answer
    x = 13,952.45

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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.