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Finding the Fourth Proportional to 71,684.42, 107,548.50 and 36,648.68

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Solution

The fourth proportional to 71,684.42, 107,548.50 and 36,648.68 is: 54,984.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,684.42 : 107,548.50 = 36,648.68 : x
  2. Step 2: Convert to fraction form
    71,684.42/107,548.50 = 36,648.68/x
  3. Step 3: Cross multiply
    71,684.42x = 107,548.50 × 36,648.68
  4. Step 4: Simplify right side
    71,684.42x = 3,941,510,560.98
  5. Step 5: Solve for x
    x = 3,941,510,560.98/71,684.42
  6. Step 6: Final answer
    x = 54,984.20

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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.