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Finding the Fourth Proportional to 9,980.96, 14,908.62 and 7,324.97

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Solution

The fourth proportional to 9,980.96, 14,908.62 and 7,324.97 is: 10,941.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,980.96 : 14,908.62 = 7,324.97 : x
  2. Step 2: Convert to fraction form
    9,980.96/14,908.62 = 7,324.97/x
  3. Step 3: Cross multiply
    9,980.96x = 14,908.62 × 7,324.97
  4. Step 4: Simplify right side
    9,980.96x = 109,205,147.17
  5. Step 5: Solve for x
    x = 109,205,147.17/9,980.96
  6. Step 6: Final answer
    x = 10,941.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.