Home / 66,279.17-91,466.78-37,600.75

Finding the Fourth Proportional to 66,279.17, 91,466.78 and 37,600.75

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Solution

The fourth proportional to 66,279.17, 91,466.78 and 37,600.75 is: 51,889.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,279.17 : 91,466.78 = 37,600.75 : x
  2. Step 2: Convert to fraction form
    66,279.17/91,466.78 = 37,600.75/x
  3. Step 3: Cross multiply
    66,279.17x = 91,466.78 × 37,600.75
  4. Step 4: Simplify right side
    66,279.17x = 3,439,219,528.09
  5. Step 5: Solve for x
    x = 3,439,219,528.09/66,279.17
  6. Step 6: Final answer
    x = 51,889.90

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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.