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Finding the Fourth Proportional to 61,683.34, 85,136.50 and 39,052.50

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Solution

The fourth proportional to 61,683.34, 85,136.50 and 39,052.50 is: 53,900.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,683.34 : 85,136.50 = 39,052.50 : x
  2. Step 2: Convert to fraction form
    61,683.34/85,136.50 = 39,052.50/x
  3. Step 3: Cross multiply
    61,683.34x = 85,136.50 × 39,052.50
  4. Step 4: Simplify right side
    61,683.34x = 3,324,792,740.57
  5. Step 5: Solve for x
    x = 3,324,792,740.57/61,683.34
  6. Step 6: Final answer
    x = 53,900.99

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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.