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Finding the Fourth Proportional to 6,616,273.78, 9,916,972.08 and 3,368,695.69

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Solution

The fourth proportional to 6,616,273.78, 9,916,972.08 and 3,368,695.69 is: 5,049,256.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,616,273.78 : 9,916,972.08 = 3,368,695.69 : x
  2. Step 2: Convert to fraction form
    6,616,273.78/9,916,972.08 = 3,368,695.69/x
  3. Step 3: Cross multiply
    6,616,273.78x = 9,916,972.08 × 3,368,695.69
  4. Step 4: Simplify right side
    6,616,273.78x = 33,407,261,103,746.34
  5. Step 5: Solve for x
    x = 33,407,261,103,746.34/6,616,273.78
  6. Step 6: Final answer
    x = 5,049,256.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.