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Finding the Fourth Proportional to 70,186.86, 96,859.17 and 38,357.82

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Solution

The fourth proportional to 70,186.86, 96,859.17 and 38,357.82 is: 52,934.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,186.86 : 96,859.17 = 38,357.82 : x
  2. Step 2: Convert to fraction form
    70,186.86/96,859.17 = 38,357.82/x
  3. Step 3: Cross multiply
    70,186.86x = 96,859.17 × 38,357.82
  4. Step 4: Simplify right side
    70,186.86x = 3,715,306,608.21
  5. Step 5: Solve for x
    x = 3,715,306,608.21/70,186.86
  6. Step 6: Final answer
    x = 52,934.50

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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.