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Finding the Fourth Proportional to 19,262.70, 26,583.06 and 10,879.20

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Solution

The fourth proportional to 19,262.70, 26,583.06 and 10,879.20 is: 15,013.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,262.70 : 26,583.06 = 10,879.20 : x
  2. Step 2: Convert to fraction form
    19,262.70/26,583.06 = 10,879.20/x
  3. Step 3: Cross multiply
    19,262.70x = 26,583.06 × 10,879.20
  4. Step 4: Simplify right side
    19,262.70x = 289,202,426.35
  5. Step 5: Solve for x
    x = 289,202,426.35/19,262.70
  6. Step 6: Final answer
    x = 15,013.60

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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.