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Finding the Fourth Proportional to 34,713.90, 47,905.20 and 18,798.41

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Solution

The fourth proportional to 34,713.90, 47,905.20 and 18,798.41 is: 25,941.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,713.90 : 47,905.20 = 18,798.41 : x
  2. Step 2: Convert to fraction form
    34,713.90/47,905.20 = 18,798.41/x
  3. Step 3: Cross multiply
    34,713.90x = 47,905.20 × 18,798.41
  4. Step 4: Simplify right side
    34,713.90x = 900,541,710.50
  5. Step 5: Solve for x
    x = 900,541,710.50/34,713.90
  6. Step 6: Final answer
    x = 25,941.82

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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.