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Finding the Fourth Proportional to 8,352.64, 11,521.92 and 7,506.96

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Solution

The fourth proportional to 8,352.64, 11,521.92 and 7,506.96 is: 10,355.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,352.64 : 11,521.92 = 7,506.96 : x
  2. Step 2: Convert to fraction form
    8,352.64/11,521.92 = 7,506.96/x
  3. Step 3: Cross multiply
    8,352.64x = 11,521.92 × 7,506.96
  4. Step 4: Simplify right side
    8,352.64x = 86,494,592.56
  5. Step 5: Solve for x
    x = 86,494,592.56/8,352.64
  6. Step 6: Final answer
    x = 10,355.36

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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.