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Finding the Fourth Proportional to 31,683.39, 47,483.10 and 16,860.39

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Solution

The fourth proportional to 31,683.39, 47,483.10 and 16,860.39 is: 25,268.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,683.39 : 47,483.10 = 16,860.39 : x
  2. Step 2: Convert to fraction form
    31,683.39/47,483.10 = 16,860.39/x
  3. Step 3: Cross multiply
    31,683.39x = 47,483.10 × 16,860.39
  4. Step 4: Simplify right side
    31,683.39x = 800,583,584.41
  5. Step 5: Solve for x
    x = 800,583,584.41/31,683.39
  6. Step 6: Final answer
    x = 25,268.24

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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.