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Finding the Fourth Proportional to 18,592.91, 25,662.45 and 10,639.52

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Solution

The fourth proportional to 18,592.91, 25,662.45 and 10,639.52 is: 14,684.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,592.91 : 25,662.45 = 10,639.52 : x
  2. Step 2: Convert to fraction form
    18,592.91/25,662.45 = 10,639.52/x
  3. Step 3: Cross multiply
    18,592.91x = 25,662.45 × 10,639.52
  4. Step 4: Simplify right side
    18,592.91x = 273,036,021.71
  5. Step 5: Solve for x
    x = 273,036,021.71/18,592.91
  6. Step 6: Final answer
    x = 14,684.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.