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Finding the Fourth Proportional to 62,630.57, 86,420.79 and 35,767.36

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Solution

The fourth proportional to 62,630.57, 86,420.79 and 35,767.36 is: 49,353.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,630.57 : 86,420.79 = 35,767.36 : x
  2. Step 2: Convert to fraction form
    62,630.57/86,420.79 = 35,767.36/x
  3. Step 3: Cross multiply
    62,630.57x = 86,420.79 × 35,767.36
  4. Step 4: Simplify right side
    62,630.57x = 3,091,043,507.41
  5. Step 5: Solve for x
    x = 3,091,043,507.41/62,630.57
  6. Step 6: Final answer
    x = 49,353.59

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1.5x scale

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.