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Finding the Fourth Proportional to 52,491, 72,438.81 and 29,826.39

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Solution

The fourth proportional to 52,491, 72,438.81 and 29,826.39 is: 41,161.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,491 : 72,438.81 = 29,826.39 : x
  2. Step 2: Convert to fraction form
    52,491/72,438.81 = 29,826.39/x
  3. Step 3: Cross multiply
    52,491x = 72,438.81 × 29,826.39
  4. Step 4: Simplify right side
    52,491x = 2,160,588,198.20
  5. Step 5: Solve for x
    x = 2,160,588,198.20/52,491
  6. Step 6: Final answer
    x = 41,161.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.