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Finding the Fourth Proportional to 63,369.84, 87,447 and 37,876.80

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Solution

The fourth proportional to 63,369.84, 87,447 and 37,876.80 is: 52,267.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,369.84 : 87,447 = 37,876.80 : x
  2. Step 2: Convert to fraction form
    63,369.84/87,447 = 37,876.80/x
  3. Step 3: Cross multiply
    63,369.84x = 87,447 × 37,876.80
  4. Step 4: Simplify right side
    63,369.84x = 3,312,212,529.60
  5. Step 5: Solve for x
    x = 3,312,212,529.60/63,369.84
  6. Step 6: Final answer
    x = 52,267.96

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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.