Home / 65,996.31-91,066.20-37,319.88

Finding the Fourth Proportional to 65,996.31, 91,066.20 and 37,319.88

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Solution

The fourth proportional to 65,996.31, 91,066.20 and 37,319.88 is: 51,496.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,996.31 : 91,066.20 = 37,319.88 : x
  2. Step 2: Convert to fraction form
    65,996.31/91,066.20 = 37,319.88/x
  3. Step 3: Cross multiply
    65,996.31x = 91,066.20 × 37,319.88
  4. Step 4: Simplify right side
    65,996.31x = 3,398,579,656.06
  5. Step 5: Solve for x
    x = 3,398,579,656.06/65,996.31
  6. Step 6: Final answer
    x = 51,496.51

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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.