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Finding the Fourth Proportional to 34,714.45, 47,905.86 and 18,798.90

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Solution

The fourth proportional to 34,714.45, 47,905.86 and 18,798.90 is: 25,942.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,714.45 : 47,905.86 = 18,798.90 : x
  2. Step 2: Convert to fraction form
    34,714.45/47,905.86 = 18,798.90/x
  3. Step 3: Cross multiply
    34,714.45x = 47,905.86 × 18,798.90
  4. Step 4: Simplify right side
    34,714.45x = 900,577,471.55
  5. Step 5: Solve for x
    x = 900,577,471.55/34,714.45
  6. Step 6: Final answer
    x = 25,942.44

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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.