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Finding the Fourth Proportional to 61,437.36, 92,139.60 and 37,891.56

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Solution

The fourth proportional to 61,437.36, 92,139.60 and 37,891.56 is: 56,827.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,437.36 : 92,139.60 = 37,891.56 : x
  2. Step 2: Convert to fraction form
    61,437.36/92,139.60 = 37,891.56/x
  3. Step 3: Cross multiply
    61,437.36x = 92,139.60 × 37,891.56
  4. Step 4: Simplify right side
    61,437.36x = 3,491,313,181.78
  5. Step 5: Solve for x
    x = 3,491,313,181.78/61,437.36
  6. Step 6: Final answer
    x = 56,827.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.