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Finding the Fourth Proportional to 86,313.37, 129,460.83 and 23,139.83

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Solution

The fourth proportional to 86,313.37, 129,460.83 and 23,139.83 is: 34,707.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,313.37 : 129,460.83 = 23,139.83 : x
  2. Step 2: Convert to fraction form
    86,313.37/129,460.83 = 23,139.83/x
  3. Step 3: Cross multiply
    86,313.37x = 129,460.83 × 23,139.83
  4. Step 4: Simplify right side
    86,313.37x = 2,995,701,236.68
  5. Step 5: Solve for x
    x = 2,995,701,236.68/86,313.37
  6. Step 6: Final answer
    x = 34,707.27

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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.