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Finding the Fourth Proportional to 39,358.99, 59,046.87 and 12,706.49

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Solution

The fourth proportional to 39,358.99, 59,046.87 and 12,706.49 is: 19,062.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,358.99 : 59,046.87 = 12,706.49 : x
  2. Step 2: Convert to fraction form
    39,358.99/59,046.87 = 12,706.49/x
  3. Step 3: Cross multiply
    39,358.99x = 59,046.87 × 12,706.49
  4. Step 4: Simplify right side
    39,358.99x = 750,278,399.65
  5. Step 5: Solve for x
    x = 750,278,399.65/39,358.99
  6. Step 6: Final answer
    x = 19,062.44

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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.