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Finding the Fourth Proportional to 7,209.91, 10,744.21 and 6,975.01

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Solution

The fourth proportional to 7,209.91, 10,744.21 and 6,975.01 is: 10,394.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,209.91 : 10,744.21 = 6,975.01 : x
  2. Step 2: Convert to fraction form
    7,209.91/10,744.21 = 6,975.01/x
  3. Step 3: Cross multiply
    7,209.91x = 10,744.21 × 6,975.01
  4. Step 4: Simplify right side
    7,209.91x = 74,940,972.19
  5. Step 5: Solve for x
    x = 74,940,972.19/7,209.91
  6. Step 6: Final answer
    x = 10,394.16

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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.