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Finding the Fourth Proportional to 18,196.92, 25,113.20 and 10,238.64

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Solution

The fourth proportional to 18,196.92, 25,113.20 and 10,238.64 is: 14,130.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,196.92 : 25,113.20 = 10,238.64 : x
  2. Step 2: Convert to fraction form
    18,196.92/25,113.20 = 10,238.64/x
  3. Step 3: Cross multiply
    18,196.92x = 25,113.20 × 10,238.64
  4. Step 4: Simplify right side
    18,196.92x = 257,125,014.05
  5. Step 5: Solve for x
    x = 257,125,014.05/18,196.92
  6. Step 6: Final answer
    x = 14,130.14

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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.