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Finding the Fourth Proportional to 11,495.45, 17,230.90 and 6,554.45

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Solution

The fourth proportional to 11,495.45, 17,230.90 and 6,554.45 is: 9,824.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,495.45 : 17,230.90 = 6,554.45 : x
  2. Step 2: Convert to fraction form
    11,495.45/17,230.90 = 6,554.45/x
  3. Step 3: Cross multiply
    11,495.45x = 17,230.90 × 6,554.45
  4. Step 4: Simplify right side
    11,495.45x = 112,939,072.51
  5. Step 5: Solve for x
    x = 112,939,072.51/11,495.45
  6. Step 6: Final answer
    x = 9,824.68

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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.