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Finding the Third Proportional to 7,321 and 9,973.50

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Solution

The third proportional to 7,321 and 9,973.50 is: 13,587.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321 : 9,973.50 = 9,973.50 : x
  2. Step 2: Convert to fraction form
    7,321/9,973.50 = 9,973.50/x
  3. Step 3: Cross multiply
    7,321x = 9,973.50 × 9,973.50
  4. Step 4: Simplify right side
    7,321x = 99,470,702.25
  5. Step 5: Solve for x
    x = 99,470,702.25/7,321
  6. Step 6: Final answer
    x = 13,587.04

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.