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Finding the Fourth Proportional to 18,146.34, 27,212.52 and 7,051.57

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Solution

The fourth proportional to 18,146.34, 27,212.52 and 7,051.57 is: 10,574.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,146.34 : 27,212.52 = 7,051.57 : x
  2. Step 2: Convert to fraction form
    18,146.34/27,212.52 = 7,051.57/x
  3. Step 3: Cross multiply
    18,146.34x = 27,212.52 × 7,051.57
  4. Step 4: Simplify right side
    18,146.34x = 191,890,989.66
  5. Step 5: Solve for x
    x = 191,890,989.66/18,146.34
  6. Step 6: Final answer
    x = 10,574.64

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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.