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Finding the Fourth Proportional to 19,321.44, 26,665.28 and 10,823.44

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Solution

The fourth proportional to 19,321.44, 26,665.28 and 10,823.44 is: 14,937.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,321.44 : 26,665.28 = 10,823.44 : x
  2. Step 2: Convert to fraction form
    19,321.44/26,665.28 = 10,823.44/x
  3. Step 3: Cross multiply
    19,321.44x = 26,665.28 × 10,823.44
  4. Step 4: Simplify right side
    19,321.44x = 288,610,058.16
  5. Step 5: Solve for x
    x = 288,610,058.16/19,321.44
  6. Step 6: Final answer
    x = 14,937.30

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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.