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Finding the Fourth Proportional to 18,605.92, 25,674.68 and 10,646.32

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Solution

The fourth proportional to 18,605.92, 25,674.68 and 10,646.32 is: 14,691.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,605.92 : 25,674.68 = 10,646.32 : x
  2. Step 2: Convert to fraction form
    18,605.92/25,674.68 = 10,646.32/x
  3. Step 3: Cross multiply
    18,605.92x = 25,674.68 × 10,646.32
  4. Step 4: Simplify right side
    18,605.92x = 273,340,859.18
  5. Step 5: Solve for x
    x = 273,340,859.18/18,605.92
  6. Step 6: Final answer
    x = 14,691.07

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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.