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Finding the Fourth Proportional to 66,224.70, 91,378.80 and 37,543.14

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Solution

The fourth proportional to 66,224.70, 91,378.80 and 37,543.14 is: 51,803.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,224.70 : 91,378.80 = 37,543.14 : x
  2. Step 2: Convert to fraction form
    66,224.70/91,378.80 = 37,543.14/x
  3. Step 3: Cross multiply
    66,224.70x = 91,378.80 × 37,543.14
  4. Step 4: Simplify right side
    66,224.70x = 3,430,647,081.43
  5. Step 5: Solve for x
    x = 3,430,647,081.43/66,224.70
  6. Step 6: Final answer
    x = 51,803.14

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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.