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Finding the Fourth Proportional to 18,354.19, 27,527.92 and 8,356.57

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Solution

The fourth proportional to 18,354.19, 27,527.92 and 8,356.57 is: 12,533.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,354.19 : 27,527.92 = 8,356.57 : x
  2. Step 2: Convert to fraction form
    18,354.19/27,527.92 = 8,356.57/x
  3. Step 3: Cross multiply
    18,354.19x = 27,527.92 × 8,356.57
  4. Step 4: Simplify right side
    18,354.19x = 230,038,990.43
  5. Step 5: Solve for x
    x = 230,038,990.43/18,354.19
  6. Step 6: Final answer
    x = 12,533.32

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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.