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Finding the Fourth Proportional to 18,702.19, 27,943.73 and 18,048.13

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Solution

The fourth proportional to 18,702.19, 27,943.73 and 18,048.13 is: 26,966.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,702.19 : 27,943.73 = 18,048.13 : x
  2. Step 2: Convert to fraction form
    18,702.19/27,943.73 = 18,048.13/x
  3. Step 3: Cross multiply
    18,702.19x = 27,943.73 × 18,048.13
  4. Step 4: Simplify right side
    18,702.19x = 504,332,071.72
  5. Step 5: Solve for x
    x = 504,332,071.72/18,702.19
  6. Step 6: Final answer
    x = 26,966.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.