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Finding the Third Proportional to 7,642 and 14,585.50

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Solution

The third proportional to 7,642 and 14,585.50 is: 27,837.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,642 : 14,585.50 = 14,585.50 : x
  2. Step 2: Convert to fraction form
    7,642/14,585.50 = 14,585.50/x
  3. Step 3: Cross multiply
    7,642x = 14,585.50 × 14,585.50
  4. Step 4: Simplify right side
    7,642x = 212,736,810.25
  5. Step 5: Solve for x
    x = 212,736,810.25/7,642
  6. Step 6: Final answer
    x = 27,837.84

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Why These Related Problems?

These problems maintain the same ratio (1.91) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.