Home / 66,912.06-92,338.08-38,617.14

Finding the Fourth Proportional to 66,912.06, 92,338.08 and 38,617.14

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Solution

The fourth proportional to 66,912.06, 92,338.08 and 38,617.14 is: 53,291.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,912.06 : 92,338.08 = 38,617.14 : x
  2. Step 2: Convert to fraction form
    66,912.06/92,338.08 = 38,617.14/x
  3. Step 3: Cross multiply
    66,912.06x = 92,338.08 × 38,617.14
  4. Step 4: Simplify right side
    66,912.06x = 3,565,832,562.69
  5. Step 5: Solve for x
    x = 3,565,832,562.69/66,912.06
  6. Step 6: Final answer
    x = 53,291.33

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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.