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Finding the Fourth Proportional to 34,649.92, 47,816.90 and 18,734.38

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Solution

The fourth proportional to 34,649.92, 47,816.90 and 18,734.38 is: 25,853.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,649.92 : 47,816.90 = 18,734.38 : x
  2. Step 2: Convert to fraction form
    34,649.92/47,816.90 = 18,734.38/x
  3. Step 3: Cross multiply
    34,649.92x = 47,816.90 × 18,734.38
  4. Step 4: Simplify right side
    34,649.92x = 895,819,975.02
  5. Step 5: Solve for x
    x = 895,819,975.02/34,649.92
  6. Step 6: Final answer
    x = 25,853.45

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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.