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Finding the Fourth Proportional to 70,043.74, 96,658.45 and 38,212.63

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Solution

The fourth proportional to 70,043.74, 96,658.45 and 38,212.63 is: 52,732.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,043.74 : 96,658.45 = 38,212.63 : x
  2. Step 2: Convert to fraction form
    70,043.74/96,658.45 = 38,212.63/x
  3. Step 3: Cross multiply
    70,043.74x = 96,658.45 × 38,212.63
  4. Step 4: Simplify right side
    70,043.74x = 3,693,573,586.22
  5. Step 5: Solve for x
    x = 3,693,573,586.22/70,043.74
  6. Step 6: Final answer
    x = 52,732.39

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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.