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Finding the Fourth Proportional to 11,643.72, 16,068.72 and 6,608.17

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Solution

The fourth proportional to 11,643.72, 16,068.72 and 6,608.17 is: 9,119.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,643.72 : 16,068.72 = 6,608.17 : x
  2. Step 2: Convert to fraction form
    11,643.72/16,068.72 = 6,608.17/x
  3. Step 3: Cross multiply
    11,643.72x = 16,068.72 × 6,608.17
  4. Step 4: Simplify right side
    11,643.72x = 106,184,833.44
  5. Step 5: Solve for x
    x = 106,184,833.44/11,643.72
  6. Step 6: Final answer
    x = 9,119.49

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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.