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Finding the Fourth Proportional to 30,951.70, 46,445.99 and 11,231.79

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Solution

The fourth proportional to 30,951.70, 46,445.99 and 11,231.79 is: 16,854.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,951.70 : 46,445.99 = 11,231.79 : x
  2. Step 2: Convert to fraction form
    30,951.70/46,445.99 = 11,231.79/x
  3. Step 3: Cross multiply
    30,951.70x = 46,445.99 × 11,231.79
  4. Step 4: Simplify right side
    30,951.70x = 521,671,606.02
  5. Step 5: Solve for x
    x = 521,671,606.02/30,951.70
  6. Step 6: Final answer
    x = 16,854.38

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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.