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Finding the Fourth Proportional to 19,285.75, 26,619.24 and 10,907.11

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Solution

The fourth proportional to 19,285.75, 26,619.24 and 10,907.11 is: 15,054.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,285.75 : 26,619.24 = 10,907.11 : x
  2. Step 2: Convert to fraction form
    19,285.75/26,619.24 = 10,907.11/x
  3. Step 3: Cross multiply
    19,285.75x = 26,619.24 × 10,907.11
  4. Step 4: Simplify right side
    19,285.75x = 290,338,978.80
  5. Step 5: Solve for x
    x = 290,338,978.80/19,285.75
  6. Step 6: Final answer
    x = 15,054.59

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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.