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Finding the Fourth Proportional to 8,992,731.02, 12,409,214.55 and 5,321,004.23

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Solution

The fourth proportional to 8,992,731.02, 12,409,214.55 and 5,321,004.23 is: 7,342,539.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,992,731.02 : 12,409,214.55 = 5,321,004.23 : x
  2. Step 2: Convert to fraction form
    8,992,731.02/12,409,214.55 = 5,321,004.23/x
  3. Step 3: Cross multiply
    8,992,731.02x = 12,409,214.55 × 5,321,004.23
  4. Step 4: Simplify right side
    8,992,731.02x = 66,029,483,049,481.48
  5. Step 5: Solve for x
    x = 66,029,483,049,481.48/8,992,731.02
  6. Step 6: Final answer
    x = 7,342,539.54

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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.