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Finding the Fourth Proportional to 61,420.29, 91,982.79 and 35,045.07

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Solution

The fourth proportional to 61,420.29, 91,982.79 and 35,045.07 is: 52,483.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,420.29 : 91,982.79 = 35,045.07 : x
  2. Step 2: Convert to fraction form
    61,420.29/91,982.79 = 35,045.07/x
  3. Step 3: Cross multiply
    61,420.29x = 91,982.79 × 35,045.07
  4. Step 4: Simplify right side
    61,420.29x = 3,223,542,854.43
  5. Step 5: Solve for x
    x = 3,223,542,854.43/61,420.29
  6. Step 6: Final answer
    x = 52,483.36

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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.