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Finding the Fourth Proportional to 7,246.03, 9,991.06 and 6,721.15

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Solution

The fourth proportional to 7,246.03, 9,991.06 and 6,721.15 is: 9,267.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,246.03 : 9,991.06 = 6,721.15 : x
  2. Step 2: Convert to fraction form
    7,246.03/9,991.06 = 6,721.15/x
  3. Step 3: Cross multiply
    7,246.03x = 9,991.06 × 6,721.15
  4. Step 4: Simplify right side
    7,246.03x = 67,151,412.92
  5. Step 5: Solve for x
    x = 67,151,412.92/7,246.03
  6. Step 6: Final answer
    x = 9,267.34

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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.