Home / 66,504.36-91,728.96-39,626.16

Finding the Fourth Proportional to 66,504.36, 91,728.96 and 39,626.16

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Solution

The fourth proportional to 66,504.36, 91,728.96 and 39,626.16 is: 54,656.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,504.36 : 91,728.96 = 39,626.16 : x
  2. Step 2: Convert to fraction form
    66,504.36/91,728.96 = 39,626.16/x
  3. Step 3: Cross multiply
    66,504.36x = 91,728.96 × 39,626.16
  4. Step 4: Simplify right side
    66,504.36x = 3,634,866,445.59
  5. Step 5: Solve for x
    x = 3,634,866,445.59/66,504.36
  6. Step 6: Final answer
    x = 54,656.06

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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.