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Finding the Fourth Proportional to 66,683.25, 100,024.88 and 19,934.91

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Solution

The fourth proportional to 66,683.25, 100,024.88 and 19,934.91 is: 29,902.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,683.25 : 100,024.88 = 19,934.91 : x
  2. Step 2: Convert to fraction form
    66,683.25/100,024.88 = 19,934.91/x
  3. Step 3: Cross multiply
    66,683.25x = 100,024.88 × 19,934.91
  4. Step 4: Simplify right side
    66,683.25x = 1,993,986,880.89
  5. Step 5: Solve for x
    x = 1,993,986,880.89/66,683.25
  6. Step 6: Final answer
    x = 29,902.37

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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.