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Finding the Fourth Proportional to 61,201.93, 91,729.08 and 31,603.63

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Solution

The fourth proportional to 61,201.93, 91,729.08 and 31,603.63 is: 47,367.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,201.93 : 91,729.08 = 31,603.63 : x
  2. Step 2: Convert to fraction form
    61,201.93/91,729.08 = 31,603.63/x
  3. Step 3: Cross multiply
    61,201.93x = 91,729.08 × 31,603.63
  4. Step 4: Simplify right side
    61,201.93x = 2,898,971,904.56
  5. Step 5: Solve for x
    x = 2,898,971,904.56/61,201.93
  6. Step 6: Final answer
    x = 47,367.33

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1.5x scale

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.