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Finding the Fourth Proportional to 12,235.96, 18,354.27 and 3,470.95

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Solution

The fourth proportional to 12,235.96, 18,354.27 and 3,470.95 is: 5,206.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,235.96 : 18,354.27 = 3,470.95 : x
  2. Step 2: Convert to fraction form
    12,235.96/18,354.27 = 3,470.95/x
  3. Step 3: Cross multiply
    12,235.96x = 18,354.27 × 3,470.95
  4. Step 4: Simplify right side
    12,235.96x = 63,706,753.46
  5. Step 5: Solve for x
    x = 63,706,753.46/12,235.96
  6. Step 6: Final answer
    x = 5,206.52

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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.