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Finding the Fourth Proportional to 8,662,691.90, 11,954,001.30 and 4,794,982.40

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Solution

The fourth proportional to 8,662,691.90, 11,954,001.30 and 4,794,982.40 is: 6,616,791.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,662,691.90 : 11,954,001.30 = 4,794,982.40 : x
  2. Step 2: Convert to fraction form
    8,662,691.90/11,954,001.30 = 4,794,982.40/x
  3. Step 3: Cross multiply
    8,662,691.90x = 11,954,001.30 × 4,794,982.40
  4. Step 4: Simplify right side
    8,662,691.90x = 57,319,225,783,307.11
  5. Step 5: Solve for x
    x = 57,319,225,783,307.11/8,662,691.90
  6. Step 6: Final answer
    x = 6,616,791.46

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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.