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Finding the Fourth Proportional to 34,636.70, 47,798.49 and 18,721.11

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Solution

The fourth proportional to 34,636.70, 47,798.49 and 18,721.11 is: 25,835.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,636.70 : 47,798.49 = 18,721.11 : x
  2. Step 2: Convert to fraction form
    34,636.70/47,798.49 = 18,721.11/x
  3. Step 3: Cross multiply
    34,636.70x = 47,798.49 × 18,721.11
  4. Step 4: Simplify right side
    34,636.70x = 894,840,789.12
  5. Step 5: Solve for x
    x = 894,840,789.12/34,636.70
  6. Step 6: Final answer
    x = 25,835.05

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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.