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Finding the Fourth Proportional to 14,991.65, 22,487.49 and 5,131.01

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Solution

The fourth proportional to 14,991.65, 22,487.49 and 5,131.01 is: 7,696.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,991.65 : 22,487.49 = 5,131.01 : x
  2. Step 2: Convert to fraction form
    14,991.65/22,487.49 = 5,131.01/x
  3. Step 3: Cross multiply
    14,991.65x = 22,487.49 × 5,131.01
  4. Step 4: Simplify right side
    14,991.65x = 115,383,536.06
  5. Step 5: Solve for x
    x = 115,383,536.06/14,991.65
  6. Step 6: Final answer
    x = 7,696.52

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Double scale
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Similar ratio
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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.