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Finding the Fourth Proportional to 17,666.65, 26,499.99 and 6,571.90

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Solution

The fourth proportional to 17,666.65, 26,499.99 and 6,571.90 is: 9,857.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,666.65 : 26,499.99 = 6,571.90 : x
  2. Step 2: Convert to fraction form
    17,666.65/26,499.99 = 6,571.90/x
  3. Step 3: Cross multiply
    17,666.65x = 26,499.99 × 6,571.90
  4. Step 4: Simplify right side
    17,666.65x = 174,155,284.28
  5. Step 5: Solve for x
    x = 174,155,284.28/17,666.65
  6. Step 6: Final answer
    x = 9,857.86

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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.