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Finding the Fourth Proportional to 8,909,993.88, 12,295,791.55 and 4,835,612.88

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Solution

The fourth proportional to 8,909,993.88, 12,295,791.55 and 4,835,612.88 is: 6,673,145.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,909,993.88 : 12,295,791.55 = 4,835,612.88 : x
  2. Step 2: Convert to fraction form
    8,909,993.88/12,295,791.55 = 4,835,612.88/x
  3. Step 3: Cross multiply
    8,909,993.88x = 12,295,791.55 × 4,835,612.88
  4. Step 4: Simplify right side
    8,909,993.88x = 59,457,687,988,975.16
  5. Step 5: Solve for x
    x = 59,457,687,988,975.16/8,909,993.88
  6. Step 6: Final answer
    x = 6,673,145.77

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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.