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Finding the Fourth Proportional to 62,632.90, 86,383.14 and 55,063.12

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Solution

The fourth proportional to 62,632.90, 86,383.14 and 55,063.12 is: 75,942.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,632.90 : 86,383.14 = 55,063.12 : x
  2. Step 2: Convert to fraction form
    62,632.90/86,383.14 = 55,063.12/x
  3. Step 3: Cross multiply
    62,632.90x = 86,383.14 × 55,063.12
  4. Step 4: Simplify right side
    62,632.90x = 4,756,525,203.80
  5. Step 5: Solve for x
    x = 4,756,525,203.80/62,632.90
  6. Step 6: Final answer
    x = 75,942.92

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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.