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Finding the Fourth Proportional to 11,690.32, 17,518.32 and 5,838.88

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Solution

The fourth proportional to 11,690.32, 17,518.32 and 5,838.88 is: 8,749.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,690.32 : 17,518.32 = 5,838.88 : x
  2. Step 2: Convert to fraction form
    11,690.32/17,518.32 = 5,838.88/x
  3. Step 3: Cross multiply
    11,690.32x = 17,518.32 × 5,838.88
  4. Step 4: Simplify right side
    11,690.32x = 102,287,368.28
  5. Step 5: Solve for x
    x = 102,287,368.28/11,690.32
  6. Step 6: Final answer
    x = 8,749.75

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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.