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Finding the Fourth Proportional to 18,216.13, 25,138.02 and 10,259.14

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Solution

The fourth proportional to 18,216.13, 25,138.02 and 10,259.14 is: 14,157.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,216.13 : 25,138.02 = 10,259.14 : x
  2. Step 2: Convert to fraction form
    18,216.13/25,138.02 = 10,259.14/x
  3. Step 3: Cross multiply
    18,216.13x = 25,138.02 × 10,259.14
  4. Step 4: Simplify right side
    18,216.13x = 257,894,466.50
  5. Step 5: Solve for x
    x = 257,894,466.50/18,216.13
  6. Step 6: Final answer
    x = 14,157.48

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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.