Home / 66,558.06-91,839.66-38,258.28

Finding the Fourth Proportional to 66,558.06, 91,839.66 and 38,258.28

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Solution

The fourth proportional to 66,558.06, 91,839.66 and 38,258.28 is: 52,790.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,558.06 : 91,839.66 = 38,258.28 : x
  2. Step 2: Convert to fraction form
    66,558.06/91,839.66 = 38,258.28/x
  3. Step 3: Cross multiply
    66,558.06x = 91,839.66 × 38,258.28
  4. Step 4: Simplify right side
    66,558.06x = 3,513,627,427.38
  5. Step 5: Solve for x
    x = 3,513,627,427.38/66,558.06
  6. Step 6: Final answer
    x = 52,790.41

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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.