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Finding the Fourth Proportional to 18,197.19, 25,110.07 and 10,239.21

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Solution

The fourth proportional to 18,197.19, 25,110.07 and 10,239.21 is: 14,128.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,197.19 : 25,110.07 = 10,239.21 : x
  2. Step 2: Convert to fraction form
    18,197.19/25,110.07 = 10,239.21/x
  3. Step 3: Cross multiply
    18,197.19x = 25,110.07 × 10,239.21
  4. Step 4: Simplify right side
    18,197.19x = 257,107,254.25
  5. Step 5: Solve for x
    x = 257,107,254.25/18,197.19
  6. Step 6: Final answer
    x = 14,128.95

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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.