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Finding the Fourth Proportional to 17,066.70, 25,605.06 and 8,752.50

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Solution

The fourth proportional to 17,066.70, 25,605.06 and 8,752.50 is: 13,131.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,066.70 : 25,605.06 = 8,752.50 : x
  2. Step 2: Convert to fraction form
    17,066.70/25,605.06 = 8,752.50/x
  3. Step 3: Cross multiply
    17,066.70x = 25,605.06 × 8,752.50
  4. Step 4: Simplify right side
    17,066.70x = 224,108,287.65
  5. Step 5: Solve for x
    x = 224,108,287.65/17,066.70
  6. Step 6: Final answer
    x = 13,131.32

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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.