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Finding the Fourth Proportional to 8,617.98, 12,933.48 and 6,907.26

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Solution

The fourth proportional to 8,617.98, 12,933.48 and 6,907.26 is: 10,366.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,617.98 : 12,933.48 = 6,907.26 : x
  2. Step 2: Convert to fraction form
    8,617.98/12,933.48 = 6,907.26/x
  3. Step 3: Cross multiply
    8,617.98x = 12,933.48 × 6,907.26
  4. Step 4: Simplify right side
    8,617.98x = 89,334,909.06
  5. Step 5: Solve for x
    x = 89,334,909.06/8,617.98
  6. Step 6: Final answer
    x = 10,366.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.