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Finding the Fourth Proportional to 19,406.26, 26,780.88 and 10,907.88

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Solution

The fourth proportional to 19,406.26, 26,780.88 and 10,907.88 is: 15,053.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,406.26 : 26,780.88 = 10,907.88 : x
  2. Step 2: Convert to fraction form
    19,406.26/26,780.88 = 10,907.88/x
  3. Step 3: Cross multiply
    19,406.26x = 26,780.88 × 10,907.88
  4. Step 4: Simplify right side
    19,406.26x = 292,122,625.33
  5. Step 5: Solve for x
    x = 292,122,625.33/19,406.26
  6. Step 6: Final answer
    x = 15,053.01

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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.