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Finding the Fourth Proportional to 54,916.98, 75,847.68 and 36,980.79

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Solution

The fourth proportional to 54,916.98, 75,847.68 and 36,980.79 is: 51,075.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,916.98 : 75,847.68 = 36,980.79 : x
  2. Step 2: Convert to fraction form
    54,916.98/75,847.68 = 36,980.79/x
  3. Step 3: Cross multiply
    54,916.98x = 75,847.68 × 36,980.79
  4. Step 4: Simplify right side
    54,916.98x = 2,804,907,126.07
  5. Step 5: Solve for x
    x = 2,804,907,126.07/54,916.98
  6. Step 6: Final answer
    x = 51,075.41

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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.