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Finding the Fourth Proportional to 54,563.61, 81,363.55 and 47,927.28

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Solution

The fourth proportional to 54,563.61, 81,363.55 and 47,927.28 is: 71,467.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,563.61 : 81,363.55 = 47,927.28 : x
  2. Step 2: Convert to fraction form
    54,563.61/81,363.55 = 47,927.28/x
  3. Step 3: Cross multiply
    54,563.61x = 81,363.55 × 47,927.28
  4. Step 4: Simplify right side
    54,563.61x = 3,899,533,642.64
  5. Step 5: Solve for x
    x = 3,899,533,642.64/54,563.61
  6. Step 6: Final answer
    x = 71,467.66

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.