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Finding the Fourth Proportional to 57,476.48, 79,328.46 and 35,976.20

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Solution

The fourth proportional to 57,476.48, 79,328.46 and 35,976.20 is: 49,653.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,476.48 : 79,328.46 = 35,976.20 : x
  2. Step 2: Convert to fraction form
    57,476.48/79,328.46 = 35,976.20/x
  3. Step 3: Cross multiply
    57,476.48x = 79,328.46 × 35,976.20
  4. Step 4: Simplify right side
    57,476.48x = 2,853,936,542.65
  5. Step 5: Solve for x
    x = 2,853,936,542.65/57,476.48
  6. Step 6: Final answer
    x = 49,653.99

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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.