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Finding the Fourth Proportional to 61,603.57, 85,012.81 and 34,745.99

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Solution

The fourth proportional to 61,603.57, 85,012.81 and 34,745.99 is: 47,949.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,603.57 : 85,012.81 = 34,745.99 : x
  2. Step 2: Convert to fraction form
    61,603.57/85,012.81 = 34,745.99/x
  3. Step 3: Cross multiply
    61,603.57x = 85,012.81 × 34,745.99
  4. Step 4: Simplify right side
    61,603.57x = 2,953,854,371.80
  5. Step 5: Solve for x
    x = 2,953,854,371.80/61,603.57
  6. Step 6: Final answer
    x = 47,949.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.