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Finding the Fourth Proportional to 70,481.08, 97,259.14 and 38,649.30

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Solution

The fourth proportional to 70,481.08, 97,259.14 and 38,649.30 is: 53,333.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,481.08 : 97,259.14 = 38,649.30 : x
  2. Step 2: Convert to fraction form
    70,481.08/97,259.14 = 38,649.30/x
  3. Step 3: Cross multiply
    70,481.08x = 97,259.14 × 38,649.30
  4. Step 4: Simplify right side
    70,481.08x = 3,758,997,679.60
  5. Step 5: Solve for x
    x = 3,758,997,679.60/70,481.08
  6. Step 6: Final answer
    x = 53,333.43

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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.