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Finding the Fourth Proportional to 66,191.94, 91,343.25 and 37,895.22

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Solution

The fourth proportional to 66,191.94, 91,343.25 and 37,895.22 is: 52,294.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,191.94 : 91,343.25 = 37,895.22 : x
  2. Step 2: Convert to fraction form
    66,191.94/91,343.25 = 37,895.22/x
  3. Step 3: Cross multiply
    66,191.94x = 91,343.25 × 37,895.22
  4. Step 4: Simplify right side
    66,191.94x = 3,461,472,554.27
  5. Step 5: Solve for x
    x = 3,461,472,554.27/66,191.94
  6. Step 6: Final answer
    x = 52,294.47

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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.