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Finding the Fourth Proportional to 62,620.40, 86,417.20 and 33,940.97

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Solution

The fourth proportional to 62,620.40, 86,417.20 and 33,940.97 is: 46,839.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,620.40 : 86,417.20 = 33,940.97 : x
  2. Step 2: Convert to fraction form
    62,620.40/86,417.20 = 33,940.97/x
  3. Step 3: Cross multiply
    62,620.40x = 86,417.20 × 33,940.97
  4. Step 4: Simplify right side
    62,620.40x = 2,933,083,075.75
  5. Step 5: Solve for x
    x = 2,933,083,075.75/62,620.40
  6. Step 6: Final answer
    x = 46,839.10

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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.