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Finding the Fourth Proportional to 86,809.84, 130,224.09 and 27,631.67

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Solution

The fourth proportional to 86,809.84, 130,224.09 and 27,631.67 is: 41,450.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,809.84 : 130,224.09 = 27,631.67 : x
  2. Step 2: Convert to fraction form
    86,809.84/130,224.09 = 27,631.67/x
  3. Step 3: Cross multiply
    86,809.84x = 130,224.09 × 27,631.67
  4. Step 4: Simplify right side
    86,809.84x = 3,598,308,533.43
  5. Step 5: Solve for x
    x = 3,598,308,533.43/86,809.84
  6. Step 6: Final answer
    x = 41,450.47

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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.