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Finding the Fourth Proportional to 18,453.84, 27,680.76 and 4,602.84

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Solution

The fourth proportional to 18,453.84, 27,680.76 and 4,602.84 is: 6,904.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,453.84 : 27,680.76 = 4,602.84 : x
  2. Step 2: Convert to fraction form
    18,453.84/27,680.76 = 4,602.84/x
  3. Step 3: Cross multiply
    18,453.84x = 27,680.76 × 4,602.84
  4. Step 4: Simplify right side
    18,453.84x = 127,410,109.36
  5. Step 5: Solve for x
    x = 127,410,109.36/18,453.84
  6. Step 6: Final answer
    x = 6,904.26

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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.