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Finding the Fourth Proportional to 9,332.63, 12,879.02 and 5,353.57

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Solution

The fourth proportional to 9,332.63, 12,879.02 and 5,353.57 is: 7,387.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,332.63 : 12,879.02 = 5,353.57 : x
  2. Step 2: Convert to fraction form
    9,332.63/12,879.02 = 5,353.57/x
  3. Step 3: Cross multiply
    9,332.63x = 12,879.02 × 5,353.57
  4. Step 4: Simplify right side
    9,332.63x = 68,948,716.29
  5. Step 5: Solve for x
    x = 68,948,716.29/9,332.63
  6. Step 6: Final answer
    x = 7,387.92

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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.