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Finding the Fourth Proportional to 18,409.96, 25,406.04 and 10,026.48

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Solution

The fourth proportional to 18,409.96, 25,406.04 and 10,026.48 is: 13,836.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,409.96 : 25,406.04 = 10,026.48 : x
  2. Step 2: Convert to fraction form
    18,409.96/25,406.04 = 10,026.48/x
  3. Step 3: Cross multiply
    18,409.96x = 25,406.04 × 10,026.48
  4. Step 4: Simplify right side
    18,409.96x = 254,733,151.94
  5. Step 5: Solve for x
    x = 254,733,151.94/18,409.96
  6. Step 6: Final answer
    x = 13,836.70

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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.