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Finding the Fourth Proportional to 61,720.84, 92,603.94 and 26,189.92

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Solution

The fourth proportional to 61,720.84, 92,603.94 and 26,189.92 is: 39,294.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,720.84 : 92,603.94 = 26,189.92 : x
  2. Step 2: Convert to fraction form
    61,720.84/92,603.94 = 26,189.92/x
  3. Step 3: Cross multiply
    61,720.84x = 92,603.94 × 26,189.92
  4. Step 4: Simplify right side
    61,720.84x = 2,425,289,780.28
  5. Step 5: Solve for x
    x = 2,425,289,780.28/61,720.84
  6. Step 6: Final answer
    x = 39,294.50

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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.