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Finding the Third Proportional to 19,140 and 28,730.06

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Solution

The third proportional to 19,140 and 28,730.06 is: 43,125.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,140 : 28,730.06 = 28,730.06 : x
  2. Step 2: Convert to fraction form
    19,140/28,730.06 = 28,730.06/x
  3. Step 3: Cross multiply
    19,140x = 28,730.06 × 28,730.06
  4. Step 4: Simplify right side
    19,140x = 825,416,491.25
  5. Step 5: Solve for x
    x = 825,416,491.25/19,140
  6. Step 6: Final answer
    x = 43,125.21

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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.