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Finding the Fourth Proportional to 37,881.54, 52,281.54 and 21,962.70

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Solution

The fourth proportional to 37,881.54, 52,281.54 and 21,962.70 is: 30,311.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,881.54 : 52,281.54 = 21,962.70 : x
  2. Step 2: Convert to fraction form
    37,881.54/52,281.54 = 21,962.70/x
  3. Step 3: Cross multiply
    37,881.54x = 52,281.54 × 21,962.70
  4. Step 4: Simplify right side
    37,881.54x = 1,148,243,778.56
  5. Step 5: Solve for x
    x = 1,148,243,778.56/37,881.54
  6. Step 6: Final answer
    x = 30,311.43

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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.