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Finding the Fourth Proportional to 70,679.42, 97,533.15 and 38,845.34

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Solution

The fourth proportional to 70,679.42, 97,533.15 and 38,845.34 is: 53,604.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,679.42 : 97,533.15 = 38,845.34 : x
  2. Step 2: Convert to fraction form
    70,679.42/97,533.15 = 38,845.34/x
  3. Step 3: Cross multiply
    70,679.42x = 97,533.15 × 38,845.34
  4. Step 4: Simplify right side
    70,679.42x = 3,788,708,373.02
  5. Step 5: Solve for x
    x = 3,788,708,373.02/70,679.42
  6. Step 6: Final answer
    x = 53,604.12

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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.