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Finding the Fourth Proportional to 6,616,254.66, 9,916,943.43 and 3,368,676.55

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Solution

The fourth proportional to 6,616,254.66, 9,916,943.43 and 3,368,676.55 is: 5,049,227.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,616,254.66 : 9,916,943.43 = 3,368,676.55 : x
  2. Step 2: Convert to fraction form
    6,616,254.66/9,916,943.43 = 3,368,676.55/x
  3. Step 3: Cross multiply
    6,616,254.66x = 9,916,943.43 × 3,368,676.55
  4. Step 4: Simplify right side
    6,616,254.66x = 33,406,974,780,081.21
  5. Step 5: Solve for x
    x = 33,406,974,780,081.21/6,616,254.66
  6. Step 6: Final answer
    x = 5,049,227.47

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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.