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Finding the Fourth Proportional to 8,626.56, 11,898 and 7,298.16

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Solution

The fourth proportional to 8,626.56, 11,898 and 7,298.16 is: 10,065.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,626.56 : 11,898 = 7,298.16 : x
  2. Step 2: Convert to fraction form
    8,626.56/11,898 = 7,298.16/x
  3. Step 3: Cross multiply
    8,626.56x = 11,898 × 7,298.16
  4. Step 4: Simplify right side
    8,626.56x = 86,833,507.68
  5. Step 5: Solve for x
    x = 86,833,507.68/8,626.56
  6. Step 6: Final answer
    x = 10,065.83

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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.