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Finding the Fourth Proportional to 18,253.92, 25,188.89 and 10,298.10

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Solution

The fourth proportional to 18,253.92, 25,188.89 and 10,298.10 is: 14,210.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,253.92 : 25,188.89 = 10,298.10 : x
  2. Step 2: Convert to fraction form
    18,253.92/25,188.89 = 10,298.10/x
  3. Step 3: Cross multiply
    18,253.92x = 25,188.89 × 10,298.10
  4. Step 4: Simplify right side
    18,253.92x = 259,397,708.11
  5. Step 5: Solve for x
    x = 259,397,708.11/18,253.92
  6. Step 6: Final answer
    x = 14,210.52

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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.