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Finding the Fourth Proportional to 58,757.20, 81,084.99 and 31,899.69

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Solution

The fourth proportional to 58,757.20, 81,084.99 and 31,899.69 is: 44,021.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,757.20 : 81,084.99 = 31,899.69 : x
  2. Step 2: Convert to fraction form
    58,757.20/81,084.99 = 31,899.69/x
  3. Step 3: Cross multiply
    58,757.20x = 81,084.99 × 31,899.69
  4. Step 4: Simplify right side
    58,757.20x = 2,586,586,044.65
  5. Step 5: Solve for x
    x = 2,586,586,044.65/58,757.20
  6. Step 6: Final answer
    x = 44,021.60

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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.