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Finding the Fourth Proportional to 30,955.86, 46,433.79 and 8,769.42

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Solution

The fourth proportional to 30,955.86, 46,433.79 and 8,769.42 is: 13,154.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,955.86 : 46,433.79 = 8,769.42 : x
  2. Step 2: Convert to fraction form
    30,955.86/46,433.79 = 8,769.42/x
  3. Step 3: Cross multiply
    30,955.86x = 46,433.79 × 8,769.42
  4. Step 4: Simplify right side
    30,955.86x = 407,197,406.70
  5. Step 5: Solve for x
    x = 407,197,406.70/30,955.86
  6. Step 6: Final answer
    x = 13,154.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.