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Finding the Fourth Proportional to 18,175.94, 25,084.34 and 10,218.92

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Solution

The fourth proportional to 18,175.94, 25,084.34 and 10,218.92 is: 14,102.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,175.94 : 25,084.34 = 10,218.92 : x
  2. Step 2: Convert to fraction form
    18,175.94/25,084.34 = 10,218.92/x
  3. Step 3: Cross multiply
    18,175.94x = 25,084.34 × 10,218.92
  4. Step 4: Simplify right side
    18,175.94x = 256,334,863.71
  5. Step 5: Solve for x
    x = 256,334,863.71/18,175.94
  6. Step 6: Final answer
    x = 14,102.98

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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.