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Finding the Fourth Proportional to 6,658,357.02, 9,983,336.49 and 3,668,640.54

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Solution

The fourth proportional to 6,658,357.02, 9,983,336.49 and 3,668,640.54 is: 5,500,647.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,658,357.02 : 9,983,336.49 = 3,668,640.54 : x
  2. Step 2: Convert to fraction form
    6,658,357.02/9,983,336.49 = 3,668,640.54/x
  3. Step 3: Cross multiply
    6,658,357.02x = 9,983,336.49 × 3,668,640.54
  4. Step 4: Simplify right side
    6,658,357.02x = 36,625,272,971,675.30
  5. Step 5: Solve for x
    x = 36,625,272,971,675.30/6,658,357.02
  6. Step 6: Final answer
    x = 5,500,647.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.