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Finding the Fourth Proportional to 70,042.70, 96,654.98 and 39,835.37

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Solution

The fourth proportional to 70,042.70, 96,654.98 and 39,835.37 is: 54,970.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,042.70 : 96,654.98 = 39,835.37 : x
  2. Step 2: Convert to fraction form
    70,042.70/96,654.98 = 39,835.37/x
  3. Step 3: Cross multiply
    70,042.70x = 96,654.98 × 39,835.37
  4. Step 4: Simplify right side
    70,042.70x = 3,850,286,506.96
  5. Step 5: Solve for x
    x = 3,850,286,506.96/70,042.70
  6. Step 6: Final answer
    x = 54,970.56

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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.