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Finding the Fourth Proportional to 58,281.44, 87,467.90 and 40,636.40

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Solution

The fourth proportional to 58,281.44, 87,467.90 and 40,636.40 is: 60,986.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,281.44 : 87,467.90 = 40,636.40 : x
  2. Step 2: Convert to fraction form
    58,281.44/87,467.90 = 40,636.40/x
  3. Step 3: Cross multiply
    58,281.44x = 87,467.90 × 40,636.40
  4. Step 4: Simplify right side
    58,281.44x = 3,554,380,571.56
  5. Step 5: Solve for x
    x = 3,554,380,571.56/58,281.44
  6. Step 6: Final answer
    x = 60,986.49

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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.