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Finding the Fourth Proportional to 67,134.80, 92,658.12 and 38,856.08

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Solution

The fourth proportional to 67,134.80, 92,658.12 and 38,856.08 is: 53,628.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,134.80 : 92,658.12 = 38,856.08 : x
  2. Step 2: Convert to fraction form
    67,134.80/92,658.12 = 38,856.08/x
  3. Step 3: Cross multiply
    67,134.80x = 92,658.12 × 38,856.08
  4. Step 4: Simplify right side
    67,134.80x = 3,600,331,323.37
  5. Step 5: Solve for x
    x = 3,600,331,323.37/67,134.80
  6. Step 6: Final answer
    x = 53,628.39

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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.