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Finding the Fourth Proportional to 46,857.80, 70,240.80 and 18,770.24

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Solution

The fourth proportional to 46,857.80, 70,240.80 and 18,770.24 is: 28,136.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,857.80 : 70,240.80 = 18,770.24 : x
  2. Step 2: Convert to fraction form
    46,857.80/70,240.80 = 18,770.24/x
  3. Step 3: Cross multiply
    46,857.80x = 70,240.80 × 18,770.24
  4. Step 4: Simplify right side
    46,857.80x = 1,318,436,673.79
  5. Step 5: Solve for x
    x = 1,318,436,673.79/46,857.80
  6. Step 6: Final answer
    x = 28,136.97

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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.