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Finding the Fourth Proportional to 55,672.50, 83,299.50 and 39,064.94

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Solution

The fourth proportional to 55,672.50, 83,299.50 and 39,064.94 is: 58,450.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,672.50 : 83,299.50 = 39,064.94 : x
  2. Step 2: Convert to fraction form
    55,672.50/83,299.50 = 39,064.94/x
  3. Step 3: Cross multiply
    55,672.50x = 83,299.50 × 39,064.94
  4. Step 4: Simplify right side
    55,672.50x = 3,254,089,553.03
  5. Step 5: Solve for x
    x = 3,254,089,553.03/55,672.50
  6. Step 6: Final answer
    x = 58,450.57

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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.