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Finding the Fourth Proportional to 30,374.67, 41,920.29 and 16,950.60

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Solution

The fourth proportional to 30,374.67, 41,920.29 and 16,950.60 is: 23,393.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,374.67 : 41,920.29 = 16,950.60 : x
  2. Step 2: Convert to fraction form
    30,374.67/41,920.29 = 16,950.60/x
  3. Step 3: Cross multiply
    30,374.67x = 41,920.29 × 16,950.60
  4. Step 4: Simplify right side
    30,374.67x = 710,574,067.67
  5. Step 5: Solve for x
    x = 710,574,067.67/30,374.67
  6. Step 6: Final answer
    x = 23,393.64

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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.