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Finding the Fourth Proportional to 15,637.53, 21,581.33 and 8,924.16

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Solution

The fourth proportional to 15,637.53, 21,581.33 and 8,924.16 is: 12,316.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,637.53 : 21,581.33 = 8,924.16 : x
  2. Step 2: Convert to fraction form
    15,637.53/21,581.33 = 8,924.16/x
  3. Step 3: Cross multiply
    15,637.53x = 21,581.33 × 8,924.16
  4. Step 4: Simplify right side
    15,637.53x = 192,595,273.59
  5. Step 5: Solve for x
    x = 192,595,273.59/15,637.53
  6. Step 6: Final answer
    x = 12,316.22

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.