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Finding the Fourth Proportional to 18,047.88, 27,071.78 and 4,902.18

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Solution

The fourth proportional to 18,047.88, 27,071.78 and 4,902.18 is: 7,353.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,047.88 : 27,071.78 = 4,902.18 : x
  2. Step 2: Convert to fraction form
    18,047.88/27,071.78 = 4,902.18/x
  3. Step 3: Cross multiply
    18,047.88x = 27,071.78 × 4,902.18
  4. Step 4: Simplify right side
    18,047.88x = 132,710,738.48
  5. Step 5: Solve for x
    x = 132,710,738.48/18,047.88
  6. Step 6: Final answer
    x = 7,353.26

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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.