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Finding the Fourth Proportional to 9,419.94, 12,913.08 and 9,332.82

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Solution

The fourth proportional to 9,419.94, 12,913.08 and 9,332.82 is: 12,793.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,419.94 : 12,913.08 = 9,332.82 : x
  2. Step 2: Convert to fraction form
    9,419.94/12,913.08 = 9,332.82/x
  3. Step 3: Cross multiply
    9,419.94x = 12,913.08 × 9,332.82
  4. Step 4: Simplify right side
    9,419.94x = 120,515,451.29
  5. Step 5: Solve for x
    x = 120,515,451.29/9,419.94
  6. Step 6: Final answer
    x = 12,793.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.