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Finding the Fourth Proportional to 46,890, 64,708.24 and 25,670.56

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Solution

The fourth proportional to 46,890, 64,708.24 and 25,670.56 is: 35,425.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,890 : 64,708.24 = 25,670.56 : x
  2. Step 2: Convert to fraction form
    46,890/64,708.24 = 25,670.56/x
  3. Step 3: Cross multiply
    46,890x = 64,708.24 × 25,670.56
  4. Step 4: Simplify right side
    46,890x = 1,661,096,757.41
  5. Step 5: Solve for x
    x = 1,661,096,757.41/46,890
  6. Step 6: Final answer
    x = 35,425.39

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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.