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Finding the Fourth Proportional to 18,958.00, 28,437.68 and 7,110.59

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Solution

The fourth proportional to 18,958.00, 28,437.68 and 7,110.59 is: 10,666.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,958.00 : 28,437.68 = 7,110.59 : x
  2. Step 2: Convert to fraction form
    18,958.00/28,437.68 = 7,110.59/x
  3. Step 3: Cross multiply
    18,958.00x = 28,437.68 × 7,110.59
  4. Step 4: Simplify right side
    18,958.00x = 202,208,558.62
  5. Step 5: Solve for x
    x = 202,208,558.62/18,958.00
  6. Step 6: Final answer
    x = 10,666.13

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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.