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Finding the Third Proportional to 7,124.63 and 14,986.69

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Solution

The third proportional to 7,124.63 and 14,986.69 is: 31,524.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,124.63 : 14,986.69 = 14,986.69 : x
  2. Step 2: Convert to fraction form
    7,124.63/14,986.69 = 14,986.69/x
  3. Step 3: Cross multiply
    7,124.63x = 14,986.69 × 14,986.69
  4. Step 4: Simplify right side
    7,124.63x = 224,600,802.22
  5. Step 5: Solve for x
    x = 224,600,802.22/7,124.63
  6. Step 6: Final answer
    x = 31,524.58

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.