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Finding the Fourth Proportional to 7,059.96, 9,743.07 and 3,915.96

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Solution

The fourth proportional to 7,059.96, 9,743.07 and 3,915.96 is: 5,404.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,059.96 : 9,743.07 = 3,915.96 : x
  2. Step 2: Convert to fraction form
    7,059.96/9,743.07 = 3,915.96/x
  3. Step 3: Cross multiply
    7,059.96x = 9,743.07 × 3,915.96
  4. Step 4: Simplify right side
    7,059.96x = 38,153,472.40
  5. Step 5: Solve for x
    x = 38,153,472.40/7,059.96
  6. Step 6: Final answer
    x = 5,404.21

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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.