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Finding the Fourth Proportional to 34,649.64, 47,816.64 and 18,734.22

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Solution

The fourth proportional to 34,649.64, 47,816.64 and 18,734.22 is: 25,853.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,649.64 : 47,816.64 = 18,734.22 : x
  2. Step 2: Convert to fraction form
    34,649.64/47,816.64 = 18,734.22/x
  3. Step 3: Cross multiply
    34,649.64x = 47,816.64 × 18,734.22
  4. Step 4: Simplify right side
    34,649.64x = 895,807,453.42
  5. Step 5: Solve for x
    x = 895,807,453.42/34,649.64
  6. Step 6: Final answer
    x = 25,853.30

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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.