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Finding the Fourth Proportional to 70,576.96, 97,398.48 and 40,768.96

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Solution

The fourth proportional to 70,576.96, 97,398.48 and 40,768.96 is: 56,262.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,576.96 : 97,398.48 = 40,768.96 : x
  2. Step 2: Convert to fraction form
    70,576.96/97,398.48 = 40,768.96/x
  3. Step 3: Cross multiply
    70,576.96x = 97,398.48 × 40,768.96
  4. Step 4: Simplify right side
    70,576.96x = 3,970,834,735.18
  5. Step 5: Solve for x
    x = 3,970,834,735.18/70,576.96
  6. Step 6: Final answer
    x = 56,262.48

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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.