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Finding the Fourth Proportional to 31,064.60, 46,596.90 and 15,512.60

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Solution

The fourth proportional to 31,064.60, 46,596.90 and 15,512.60 is: 23,268.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,064.60 : 46,596.90 = 15,512.60 : x
  2. Step 2: Convert to fraction form
    31,064.60/46,596.90 = 15,512.60/x
  3. Step 3: Cross multiply
    31,064.60x = 46,596.90 × 15,512.60
  4. Step 4: Simplify right side
    31,064.60x = 722,839,070.94
  5. Step 5: Solve for x
    x = 722,839,070.94/31,064.60
  6. Step 6: Final answer
    x = 23,268.90

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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.