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Finding the Fourth Proportional to 54,603.78, 81,851.05 and 23,021.47

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Solution

The fourth proportional to 54,603.78, 81,851.05 and 23,021.47 is: 34,509.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,603.78 : 81,851.05 = 23,021.47 : x
  2. Step 2: Convert to fraction form
    54,603.78/81,851.05 = 23,021.47/x
  3. Step 3: Cross multiply
    54,603.78x = 81,851.05 × 23,021.47
  4. Step 4: Simplify right side
    54,603.78x = 1,884,331,492.04
  5. Step 5: Solve for x
    x = 1,884,331,492.04/54,603.78
  6. Step 6: Final answer
    x = 34,509.18

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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.