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Finding the Fourth Proportional to 61,603.01, 85,012.03 and 34,745.43

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Solution

The fourth proportional to 61,603.01, 85,012.03 and 34,745.43 is: 47,948.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,603.01 : 85,012.03 = 34,745.43 : x
  2. Step 2: Convert to fraction form
    61,603.01/85,012.03 = 34,745.43/x
  3. Step 3: Cross multiply
    61,603.01x = 85,012.03 × 34,745.43
  4. Step 4: Simplify right side
    61,603.01x = 2,953,779,580.95
  5. Step 5: Solve for x
    x = 2,953,779,580.95/61,603.01
  6. Step 6: Final answer
    x = 47,948.63

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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.