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Finding the Fourth Proportional to 18,409.61, 27,606.21 and 6,714.63

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Solution

The fourth proportional to 18,409.61, 27,606.21 and 6,714.63 is: 10,068.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,409.61 : 27,606.21 = 6,714.63 : x
  2. Step 2: Convert to fraction form
    18,409.61/27,606.21 = 6,714.63/x
  3. Step 3: Cross multiply
    18,409.61x = 27,606.21 × 6,714.63
  4. Step 4: Simplify right side
    18,409.61x = 185,365,485.85
  5. Step 5: Solve for x
    x = 185,365,485.85/18,409.61
  6. Step 6: Final answer
    x = 10,068.95

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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.