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Finding the Fourth Proportional to 27,289.20, 40,933.80 and 16,208.40

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Solution

The fourth proportional to 27,289.20, 40,933.80 and 16,208.40 is: 24,312.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,289.20 : 40,933.80 = 16,208.40 : x
  2. Step 2: Convert to fraction form
    27,289.20/40,933.80 = 16,208.40/x
  3. Step 3: Cross multiply
    27,289.20x = 40,933.80 × 16,208.40
  4. Step 4: Simplify right side
    27,289.20x = 663,471,403.92
  5. Step 5: Solve for x
    x = 663,471,403.92/27,289.20
  6. Step 6: Final answer
    x = 24,312.60

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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.