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Finding the Fourth Proportional to 11,537,941.92, 15,920,978.96 and 6,380,603.04

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Solution

The fourth proportional to 11,537,941.92, 15,920,978.96 and 6,380,603.04 is: 8,804,468.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,537,941.92 : 15,920,978.96 = 6,380,603.04 : x
  2. Step 2: Convert to fraction form
    11,537,941.92/15,920,978.96 = 6,380,603.04/x
  3. Step 3: Cross multiply
    11,537,941.92x = 15,920,978.96 × 6,380,603.04
  4. Step 4: Simplify right side
    11,537,941.92x = 101,585,446,751,952.05
  5. Step 5: Solve for x
    x = 101,585,446,751,952.05/11,537,941.92
  6. Step 6: Final answer
    x = 8,804,468.55

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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.