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Finding the Fourth Proportional to 85,097.85, 127,665.75 and 25,938.14

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Solution

The fourth proportional to 85,097.85, 127,665.75 and 25,938.14 is: 38,912.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,097.85 : 127,665.75 = 25,938.14 : x
  2. Step 2: Convert to fraction form
    85,097.85/127,665.75 = 25,938.14/x
  3. Step 3: Cross multiply
    85,097.85x = 127,665.75 × 25,938.14
  4. Step 4: Simplify right side
    85,097.85x = 3,311,412,096.71
  5. Step 5: Solve for x
    x = 3,311,412,096.71/85,097.85
  6. Step 6: Final answer
    x = 38,912.99

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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.