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Finding the Fourth Proportional to 70,469.39, 97,247.03 and 38,638.23

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Solution

The fourth proportional to 70,469.39, 97,247.03 and 38,638.23 is: 53,320.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,469.39 : 97,247.03 = 38,638.23 : x
  2. Step 2: Convert to fraction form
    70,469.39/97,247.03 = 38,638.23/x
  3. Step 3: Cross multiply
    70,469.39x = 97,247.03 × 38,638.23
  4. Step 4: Simplify right side
    70,469.39x = 3,757,452,918.77
  5. Step 5: Solve for x
    x = 3,757,452,918.77/70,469.39
  6. Step 6: Final answer
    x = 53,320.36

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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.