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Finding the Fourth Proportional to 86,373.63, 129,499.11 and 33,020.64

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Solution

The fourth proportional to 86,373.63, 129,499.11 and 33,020.64 is: 49,507.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,373.63 : 129,499.11 = 33,020.64 : x
  2. Step 2: Convert to fraction form
    86,373.63/129,499.11 = 33,020.64/x
  3. Step 3: Cross multiply
    86,373.63x = 129,499.11 × 33,020.64
  4. Step 4: Simplify right side
    86,373.63x = 4,276,143,491.63
  5. Step 5: Solve for x
    x = 4,276,143,491.63/86,373.63
  6. Step 6: Final answer
    x = 49,507.51

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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.