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Finding the Fourth Proportional to 17,039.68, 25,564.74 and 8,725.53

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Solution

The fourth proportional to 17,039.68, 25,564.74 and 8,725.53 is: 13,090.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,039.68 : 25,564.74 = 8,725.53 : x
  2. Step 2: Convert to fraction form
    17,039.68/25,564.74 = 8,725.53/x
  3. Step 3: Cross multiply
    17,039.68x = 25,564.74 × 8,725.53
  4. Step 4: Simplify right side
    17,039.68x = 223,065,905.81
  5. Step 5: Solve for x
    x = 223,065,905.81/17,039.68
  6. Step 6: Final answer
    x = 13,090.97

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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.