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Finding the Fourth Proportional to 7,101.89, 9,801.34 and 4,270.19

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Solution

The fourth proportional to 7,101.89, 9,801.34 and 4,270.19 is: 5,893.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,101.89 : 9,801.34 = 4,270.19 : x
  2. Step 2: Convert to fraction form
    7,101.89/9,801.34 = 4,270.19/x
  3. Step 3: Cross multiply
    7,101.89x = 9,801.34 × 4,270.19
  4. Step 4: Simplify right side
    7,101.89x = 41,853,584.05
  5. Step 5: Solve for x
    x = 41,853,584.05/7,101.89
  6. Step 6: Final answer
    x = 5,893.30

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Half scale
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Double scale
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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.