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Finding the Fourth Proportional to 11,588.75, 15,992.79 and 6,553.72

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Solution

The fourth proportional to 11,588.75, 15,992.79 and 6,553.72 is: 9,044.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,588.75 : 15,992.79 = 6,553.72 : x
  2. Step 2: Convert to fraction form
    11,588.75/15,992.79 = 6,553.72/x
  3. Step 3: Cross multiply
    11,588.75x = 15,992.79 × 6,553.72
  4. Step 4: Simplify right side
    11,588.75x = 104,812,322.45
  5. Step 5: Solve for x
    x = 104,812,322.45/11,588.75
  6. Step 6: Final answer
    x = 9,044.31

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Half scale
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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.