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Finding the Fourth Proportional to 85,344.32, 127,995.84 and 37,933.28

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Solution

The fourth proportional to 85,344.32, 127,995.84 and 37,933.28 is: 56,890.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,344.32 : 127,995.84 = 37,933.28 : x
  2. Step 2: Convert to fraction form
    85,344.32/127,995.84 = 37,933.28/x
  3. Step 3: Cross multiply
    85,344.32x = 127,995.84 × 37,933.28
  4. Step 4: Simplify right side
    85,344.32x = 4,855,302,037.56
  5. Step 5: Solve for x
    x = 4,855,302,037.56/85,344.32
  6. Step 6: Final answer
    x = 56,890.75

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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.