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Finding the Fourth Proportional to 58,515.21, 80,753.90 and 35,855.46

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Solution

The fourth proportional to 58,515.21, 80,753.90 and 35,855.46 is: 49,482.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,515.21 : 80,753.90 = 35,855.46 : x
  2. Step 2: Convert to fraction form
    58,515.21/80,753.90 = 35,855.46/x
  3. Step 3: Cross multiply
    58,515.21x = 80,753.90 × 35,855.46
  4. Step 4: Simplify right side
    58,515.21x = 2,895,468,052.02
  5. Step 5: Solve for x
    x = 2,895,468,052.02/58,515.21
  6. Step 6: Final answer
    x = 49,482.31

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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.