Home / 66,527.09-91,805.10-39,655.75

Finding the Fourth Proportional to 66,527.09, 91,805.10 and 39,655.75

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Solution

The fourth proportional to 66,527.09, 91,805.10 and 39,655.75 is: 54,723.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,527.09 : 91,805.10 = 39,655.75 : x
  2. Step 2: Convert to fraction form
    66,527.09/91,805.10 = 39,655.75/x
  3. Step 3: Cross multiply
    66,527.09x = 91,805.10 × 39,655.75
  4. Step 4: Simplify right side
    66,527.09x = 3,640,599,635.30
  5. Step 5: Solve for x
    x = 3,640,599,635.30/66,527.09
  6. Step 6: Final answer
    x = 54,723.57

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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.