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Finding the Fourth Proportional to 18,951.10, 26,152.15 and 10,454.01

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Solution

The fourth proportional to 18,951.10, 26,152.15 and 10,454.01 is: 14,426.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,951.10 : 26,152.15 = 10,454.01 : x
  2. Step 2: Convert to fraction form
    18,951.10/26,152.15 = 10,454.01/x
  3. Step 3: Cross multiply
    18,951.10x = 26,152.15 × 10,454.01
  4. Step 4: Simplify right side
    18,951.10x = 273,394,837.62
  5. Step 5: Solve for x
    x = 273,394,837.62/18,951.10
  6. Step 6: Final answer
    x = 14,426.33

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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.