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Finding the Fourth Proportional to 25,759, 35,543.34 and 15,005.64

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Solution

The fourth proportional to 25,759, 35,543.34 and 15,005.64 is: 20,705.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,759 : 35,543.34 = 15,005.64 : x
  2. Step 2: Convert to fraction form
    25,759/35,543.34 = 15,005.64/x
  3. Step 3: Cross multiply
    25,759x = 35,543.34 × 15,005.64
  4. Step 4: Simplify right side
    25,759x = 533,350,564.44
  5. Step 5: Solve for x
    x = 533,350,564.44/25,759
  6. Step 6: Final answer
    x = 20,705.41

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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.