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Finding the Fourth Proportional to 18,341.85, 27,512.78 and 9,574.71

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Solution

The fourth proportional to 18,341.85, 27,512.78 and 9,574.71 is: 14,362.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,341.85 : 27,512.78 = 9,574.71 : x
  2. Step 2: Convert to fraction form
    18,341.85/27,512.78 = 9,574.71/x
  3. Step 3: Cross multiply
    18,341.85x = 27,512.78 × 9,574.71
  4. Step 4: Simplify right side
    18,341.85x = 263,426,841.92
  5. Step 5: Solve for x
    x = 263,426,841.92/18,341.85
  6. Step 6: Final answer
    x = 14,362.07

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Similar ratio
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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.