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Finding the Fourth Proportional to 70,355.36, 97,090.34 and 38,524.88

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Solution

The fourth proportional to 70,355.36, 97,090.34 and 38,524.88 is: 53,164.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,355.36 : 97,090.34 = 38,524.88 : x
  2. Step 2: Convert to fraction form
    70,355.36/97,090.34 = 38,524.88/x
  3. Step 3: Cross multiply
    70,355.36x = 97,090.34 × 38,524.88
  4. Step 4: Simplify right side
    70,355.36x = 3,740,393,697.66
  5. Step 5: Solve for x
    x = 3,740,393,697.66/70,355.36
  6. Step 6: Final answer
    x = 53,164.30

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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.