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Finding the Fourth Proportional to 62,775.36, 86,630.40 and 34,480.80

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Solution

The fourth proportional to 62,775.36, 86,630.40 and 34,480.80 is: 47,583.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,775.36 : 86,630.40 = 34,480.80 : x
  2. Step 2: Convert to fraction form
    62,775.36/86,630.40 = 34,480.80/x
  3. Step 3: Cross multiply
    62,775.36x = 86,630.40 × 34,480.80
  4. Step 4: Simplify right side
    62,775.36x = 2,987,085,496.32
  5. Step 5: Solve for x
    x = 2,987,085,496.32/62,775.36
  6. Step 6: Final answer
    x = 47,583.73

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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.