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Finding the Fourth Proportional to 66,232.38, 91,405.80 and 37,938.63

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Solution

The fourth proportional to 66,232.38, 91,405.80 and 37,938.63 is: 52,358.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,232.38 : 91,405.80 = 37,938.63 : x
  2. Step 2: Convert to fraction form
    66,232.38/91,405.80 = 37,938.63/x
  3. Step 3: Cross multiply
    66,232.38x = 91,405.80 × 37,938.63
  4. Step 4: Simplify right side
    66,232.38x = 3,467,810,826.05
  5. Step 5: Solve for x
    x = 3,467,810,826.05/66,232.38
  6. Step 6: Final answer
    x = 52,358.24

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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.