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Finding the Fourth Proportional to 13,585.73, 20,379.20 and 7,024.73

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Solution

The fourth proportional to 13,585.73, 20,379.20 and 7,024.73 is: 10,537.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,585.73 : 20,379.20 = 7,024.73 : x
  2. Step 2: Convert to fraction form
    13,585.73/20,379.20 = 7,024.73/x
  3. Step 3: Cross multiply
    13,585.73x = 20,379.20 × 7,024.73
  4. Step 4: Simplify right side
    13,585.73x = 143,158,240.60
  5. Step 5: Solve for x
    x = 143,158,240.60/13,585.73
  6. Step 6: Final answer
    x = 10,537.40

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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.