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Finding the Fourth Proportional to 86,225.70, 129,338.60 and 23,896.20

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Solution

The fourth proportional to 86,225.70, 129,338.60 and 23,896.20 is: 35,844.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,225.70 : 129,338.60 = 23,896.20 : x
  2. Step 2: Convert to fraction form
    86,225.70/129,338.60 = 23,896.20/x
  3. Step 3: Cross multiply
    86,225.70x = 129,338.60 × 23,896.20
  4. Step 4: Simplify right side
    86,225.70x = 3,090,700,933.84
  5. Step 5: Solve for x
    x = 3,090,700,933.84/86,225.70
  6. Step 6: Final answer
    x = 35,844.31

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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.