Home / 66,519.09-91,794.06-39,647.75

Finding the Fourth Proportional to 66,519.09, 91,794.06 and 39,647.75

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Solution

The fourth proportional to 66,519.09, 91,794.06 and 39,647.75 is: 54,712.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,519.09 : 91,794.06 = 39,647.75 : x
  2. Step 2: Convert to fraction form
    66,519.09/91,794.06 = 39,647.75/x
  3. Step 3: Cross multiply
    66,519.09x = 91,794.06 × 39,647.75
  4. Step 4: Simplify right side
    66,519.09x = 3,639,427,483.39
  5. Step 5: Solve for x
    x = 3,639,427,483.39/66,519.09
  6. Step 6: Final answer
    x = 54,712.53

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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.