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Finding the Fourth Proportional to 18,153.48, 27,221.04 and 7,051.62

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Solution

The fourth proportional to 18,153.48, 27,221.04 and 7,051.62 is: 10,573.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,153.48 : 27,221.04 = 7,051.62 : x
  2. Step 2: Convert to fraction form
    18,153.48/27,221.04 = 7,051.62/x
  3. Step 3: Cross multiply
    18,153.48x = 27,221.04 × 7,051.62
  4. Step 4: Simplify right side
    18,153.48x = 191,952,430.08
  5. Step 5: Solve for x
    x = 191,952,430.08/18,153.48
  6. Step 6: Final answer
    x = 10,573.86

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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.