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Finding the Fourth Proportional to 57,424.88, 86,149.74 and 17,440.58

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Solution

The fourth proportional to 57,424.88, 86,149.74 and 17,440.58 is: 26,164.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,424.88 : 86,149.74 = 17,440.58 : x
  2. Step 2: Convert to fraction form
    57,424.88/86,149.74 = 17,440.58/x
  3. Step 3: Cross multiply
    57,424.88x = 86,149.74 × 17,440.58
  4. Step 4: Simplify right side
    57,424.88x = 1,502,501,432.45
  5. Step 5: Solve for x
    x = 1,502,501,432.45/57,424.88
  6. Step 6: Final answer
    x = 26,164.64

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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.