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Finding the Fourth Proportional to 13,324.98, 19,981.62 and 7,083.48

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Solution

The fourth proportional to 13,324.98, 19,981.62 and 7,083.48 is: 10,622.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,324.98 : 19,981.62 = 7,083.48 : x
  2. Step 2: Convert to fraction form
    13,324.98/19,981.62 = 7,083.48/x
  3. Step 3: Cross multiply
    13,324.98x = 19,981.62 × 7,083.48
  4. Step 4: Simplify right side
    13,324.98x = 141,539,405.64
  5. Step 5: Solve for x
    x = 141,539,405.64/13,324.98
  6. Step 6: Final answer
    x = 10,622.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.