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Finding the Fourth Proportional to 86,721.94, 130,082.94 and 24,392.44

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Solution

The fourth proportional to 86,721.94, 130,082.94 and 24,392.44 is: 36,588.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,721.94 : 130,082.94 = 24,392.44 : x
  2. Step 2: Convert to fraction form
    86,721.94/130,082.94 = 24,392.44/x
  3. Step 3: Cross multiply
    86,721.94x = 130,082.94 × 24,392.44
  4. Step 4: Simplify right side
    86,721.94x = 3,173,040,308.97
  5. Step 5: Solve for x
    x = 3,173,040,308.97/86,721.94
  6. Step 6: Final answer
    x = 36,588.67

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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.