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Finding the Fourth Proportional to 18,187.92, 25,099.08 and 10,230.15

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Solution

The fourth proportional to 18,187.92, 25,099.08 and 10,230.15 is: 14,117.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,187.92 : 25,099.08 = 10,230.15 : x
  2. Step 2: Convert to fraction form
    18,187.92/25,099.08 = 10,230.15/x
  3. Step 3: Cross multiply
    18,187.92x = 25,099.08 × 10,230.15
  4. Step 4: Simplify right side
    18,187.92x = 256,767,353.26
  5. Step 5: Solve for x
    x = 256,767,353.26/18,187.92
  6. Step 6: Final answer
    x = 14,117.47

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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.