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Finding the Fourth Proportional to 7,843,221.03, 10,823,907.55 and 4,358,706.67

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Solution

The fourth proportional to 7,843,221.03, 10,823,907.55 and 4,358,706.67 is: 6,015,161.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,843,221.03 : 10,823,907.55 = 4,358,706.67 : x
  2. Step 2: Convert to fraction form
    7,843,221.03/10,823,907.55 = 4,358,706.67/x
  3. Step 3: Cross multiply
    7,843,221.03x = 10,823,907.55 × 4,358,706.67
  4. Step 4: Simplify right side
    7,843,221.03x = 47,178,237,979,528.83
  5. Step 5: Solve for x
    x = 47,178,237,979,528.83/7,843,221.03
  6. Step 6: Final answer
    x = 6,015,161.09

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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.