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Finding the Fourth Proportional to 63,486.50, 87,611.45 and 35,196.42

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Solution

The fourth proportional to 63,486.50, 87,611.45 and 35,196.42 is: 48,571.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,486.50 : 87,611.45 = 35,196.42 : x
  2. Step 2: Convert to fraction form
    63,486.50/87,611.45 = 35,196.42/x
  3. Step 3: Cross multiply
    63,486.50x = 87,611.45 × 35,196.42
  4. Step 4: Simplify right side
    63,486.50x = 3,083,609,391.01
  5. Step 5: Solve for x
    x = 3,083,609,391.01/63,486.50
  6. Step 6: Final answer
    x = 48,571.10

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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.