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Finding the Fourth Proportional to 35,603.31, 53,392.20 and 10,638.71

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Solution

The fourth proportional to 35,603.31, 53,392.20 and 10,638.71 is: 15,954.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,603.31 : 53,392.20 = 10,638.71 : x
  2. Step 2: Convert to fraction form
    35,603.31/53,392.20 = 10,638.71/x
  3. Step 3: Cross multiply
    35,603.31x = 53,392.20 × 10,638.71
  4. Step 4: Simplify right side
    35,603.31x = 568,024,132.06
  5. Step 5: Solve for x
    x = 568,024,132.06/35,603.31
  6. Step 6: Final answer
    x = 15,954.25

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.