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Finding the Fourth Proportional to 33,711, 46,521.20 and 18,807

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Solution

The fourth proportional to 33,711, 46,521.20 and 18,807 is: 25,953.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,711 : 46,521.20 = 18,807 : x
  2. Step 2: Convert to fraction form
    33,711/46,521.20 = 18,807/x
  3. Step 3: Cross multiply
    33,711x = 46,521.20 × 18,807
  4. Step 4: Simplify right side
    33,711x = 874,924,208.40
  5. Step 5: Solve for x
    x = 874,924,208.40/33,711
  6. Step 6: Final answer
    x = 25,953.67

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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.