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Finding the Fourth Proportional to 71,438.67, 107,156.79 and 24,690.33

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Solution

The fourth proportional to 71,438.67, 107,156.79 and 24,690.33 is: 37,035.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,438.67 : 107,156.79 = 24,690.33 : x
  2. Step 2: Convert to fraction form
    71,438.67/107,156.79 = 24,690.33/x
  3. Step 3: Cross multiply
    71,438.67x = 107,156.79 × 24,690.33
  4. Step 4: Simplify right side
    71,438.67x = 2,645,736,506.84
  5. Step 5: Solve for x
    x = 2,645,736,506.84/71,438.67
  6. Step 6: Final answer
    x = 37,035.08

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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.