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Finding the Fourth Proportional to 66,246.81, 91,423.80 and 37,952.57

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Solution

The fourth proportional to 66,246.81, 91,423.80 and 37,952.57 is: 52,376.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,246.81 : 91,423.80 = 37,952.57 : x
  2. Step 2: Convert to fraction form
    66,246.81/91,423.80 = 37,952.57/x
  3. Step 3: Cross multiply
    66,246.81x = 91,423.80 × 37,952.57
  4. Step 4: Simplify right side
    66,246.81x = 3,469,767,712.05
  5. Step 5: Solve for x
    x = 3,469,767,712.05/66,246.81
  6. Step 6: Final answer
    x = 52,376.37

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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.