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Finding the Fourth Proportional to 19,379.62, 29,039.19 and 15,482.98

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Solution

The fourth proportional to 19,379.62, 29,039.19 and 15,482.98 is: 23,200.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,379.62 : 29,039.19 = 15,482.98 : x
  2. Step 2: Convert to fraction form
    19,379.62/29,039.19 = 15,482.98/x
  3. Step 3: Cross multiply
    19,379.62x = 29,039.19 × 15,482.98
  4. Step 4: Simplify right side
    19,379.62x = 449,613,197.99
  5. Step 5: Solve for x
    x = 449,613,197.99/19,379.62
  6. Step 6: Final answer
    x = 23,200.31

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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.