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Finding the Fourth Proportional to 19,209.25, 26,508.77 and 10,377.25

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Solution

The fourth proportional to 19,209.25, 26,508.77 and 10,377.25 is: 14,320.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,209.25 : 26,508.77 = 10,377.25 : x
  2. Step 2: Convert to fraction form
    19,209.25/26,508.77 = 10,377.25/x
  3. Step 3: Cross multiply
    19,209.25x = 26,508.77 × 10,377.25
  4. Step 4: Simplify right side
    19,209.25x = 275,088,133.48
  5. Step 5: Solve for x
    x = 275,088,133.48/19,209.25
  6. Step 6: Final answer
    x = 14,320.61

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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.