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Finding the Fourth Proportional to 33,913.50, 46,800.63 and 20,665.50

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Solution

The fourth proportional to 33,913.50, 46,800.63 and 20,665.50 is: 28,518.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,913.50 : 46,800.63 = 20,665.50 : x
  2. Step 2: Convert to fraction form
    33,913.50/46,800.63 = 20,665.50/x
  3. Step 3: Cross multiply
    33,913.50x = 46,800.63 × 20,665.50
  4. Step 4: Simplify right side
    33,913.50x = 967,158,419.27
  5. Step 5: Solve for x
    x = 967,158,419.27/33,913.50
  6. Step 6: Final answer
    x = 28,518.39

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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.