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Finding the Fourth Proportional to 18,108.01, 27,157.83 and 7,011.01

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Solution

The fourth proportional to 18,108.01, 27,157.83 and 7,011.01 is: 10,514.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,108.01 : 27,157.83 = 7,011.01 : x
  2. Step 2: Convert to fraction form
    18,108.01/27,157.83 = 7,011.01/x
  3. Step 3: Cross multiply
    18,108.01x = 27,157.83 × 7,011.01
  4. Step 4: Simplify right side
    18,108.01x = 190,403,817.71
  5. Step 5: Solve for x
    x = 190,403,817.71/18,108.01
  6. Step 6: Final answer
    x = 10,514.89

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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.