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Finding the Fourth Proportional to 11,449.98, 15,794.19 and 8,473.50

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Solution

The fourth proportional to 11,449.98, 15,794.19 and 8,473.50 is: 11,688.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,449.98 : 15,794.19 = 8,473.50 : x
  2. Step 2: Convert to fraction form
    11,449.98/15,794.19 = 8,473.50/x
  3. Step 3: Cross multiply
    11,449.98x = 15,794.19 × 8,473.50
  4. Step 4: Simplify right side
    11,449.98x = 133,832,068.97
  5. Step 5: Solve for x
    x = 133,832,068.97/11,449.98
  6. Step 6: Final answer
    x = 11,688.41

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Double scale
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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.