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Finding the Fourth Proportional to 18,880.59, 26,048.73 and 11,707.92

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Solution

The fourth proportional to 18,880.59, 26,048.73 and 11,707.92 is: 16,152.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,880.59 : 26,048.73 = 11,707.92 : x
  2. Step 2: Convert to fraction form
    18,880.59/26,048.73 = 11,707.92/x
  3. Step 3: Cross multiply
    18,880.59x = 26,048.73 × 11,707.92
  4. Step 4: Simplify right side
    18,880.59x = 304,976,446.94
  5. Step 5: Solve for x
    x = 304,976,446.94/18,880.59
  6. Step 6: Final answer
    x = 16,152.91

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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.