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Finding the Fourth Proportional to 30,336.60, 41,865.81 and 16,907.86

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Solution

The fourth proportional to 30,336.60, 41,865.81 and 16,907.86 is: 23,333.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,336.60 : 41,865.81 = 16,907.86 : x
  2. Step 2: Convert to fraction form
    30,336.60/41,865.81 = 16,907.86/x
  3. Step 3: Cross multiply
    30,336.60x = 41,865.81 × 16,907.86
  4. Step 4: Simplify right side
    30,336.60x = 707,861,254.27
  5. Step 5: Solve for x
    x = 707,861,254.27/30,336.60
  6. Step 6: Final answer
    x = 23,333.57

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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.