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Finding the Fourth Proportional to 86,515.44, 129,790.68 and 36,595.44

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Solution

The fourth proportional to 86,515.44, 129,790.68 and 36,595.44 is: 54,900.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,515.44 : 129,790.68 = 36,595.44 : x
  2. Step 2: Convert to fraction form
    86,515.44/129,790.68 = 36,595.44/x
  3. Step 3: Cross multiply
    86,515.44x = 129,790.68 × 36,595.44
  4. Step 4: Simplify right side
    86,515.44x = 4,749,747,042.50
  5. Step 5: Solve for x
    x = 4,749,747,042.50/86,515.44
  6. Step 6: Final answer
    x = 54,900.57

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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.