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Finding the Fourth Proportional to 46,513.80, 69,770.70 and 13,230.60

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Solution

The fourth proportional to 46,513.80, 69,770.70 and 13,230.60 is: 19,845.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,513.80 : 69,770.70 = 13,230.60 : x
  2. Step 2: Convert to fraction form
    46,513.80/69,770.70 = 13,230.60/x
  3. Step 3: Cross multiply
    46,513.80x = 69,770.70 × 13,230.60
  4. Step 4: Simplify right side
    46,513.80x = 923,108,223.42
  5. Step 5: Solve for x
    x = 923,108,223.42/46,513.80
  6. Step 6: Final answer
    x = 19,845.90

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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.