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Finding the Fourth Proportional to 85,117.84, 127,697.44 and 25,954.56

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Solution

The fourth proportional to 85,117.84, 127,697.44 and 25,954.56 is: 38,938.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,117.84 : 127,697.44 = 25,954.56 : x
  2. Step 2: Convert to fraction form
    85,117.84/127,697.44 = 25,954.56/x
  3. Step 3: Cross multiply
    85,117.84x = 127,697.44 × 25,954.56
  4. Step 4: Simplify right side
    85,117.84x = 3,314,330,868.33
  5. Step 5: Solve for x
    x = 3,314,330,868.33/85,117.84
  6. Step 6: Final answer
    x = 38,938.15

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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.