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Finding the Fourth Proportional to 54,625.91, 81,870.80 and 19,526.99

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Solution

The fourth proportional to 54,625.91, 81,870.80 and 19,526.99 is: 29,266.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,625.91 : 81,870.80 = 19,526.99 : x
  2. Step 2: Convert to fraction form
    54,625.91/81,870.80 = 19,526.99/x
  3. Step 3: Cross multiply
    54,625.91x = 81,870.80 × 19,526.99
  4. Step 4: Simplify right side
    54,625.91x = 1,598,689,785.90
  5. Step 5: Solve for x
    x = 1,598,689,785.90/54,625.91
  6. Step 6: Final answer
    x = 29,266.15

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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.