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Finding the Fourth Proportional to 6,403,665.52, 8,837,537.92 and 3,650,418.52

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Solution

The fourth proportional to 6,403,665.52, 8,837,537.92 and 3,650,418.52 is: 5,037,850.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,403,665.52 : 8,837,537.92 = 3,650,418.52 : x
  2. Step 2: Convert to fraction form
    6,403,665.52/8,837,537.92 = 3,650,418.52/x
  3. Step 3: Cross multiply
    6,403,665.52x = 8,837,537.92 × 3,650,418.52
  4. Step 4: Simplify right side
    6,403,665.52x = 32,260,712,094,370.28
  5. Step 5: Solve for x
    x = 32,260,712,094,370.28/6,403,665.52
  6. Step 6: Final answer
    x = 5,037,850.90

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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.