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Finding the Third Proportional to 787,824 and 1,728,823.50

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Solution

The third proportional to 787,824 and 1,728,823.50 is: 3,793,779.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,824 : 1,728,823.50 = 1,728,823.50 : x
  2. Step 2: Convert to fraction form
    787,824/1,728,823.50 = 1,728,823.50/x
  3. Step 3: Cross multiply
    787,824x = 1,728,823.50 × 1,728,823.50
  4. Step 4: Simplify right side
    787,824x = 2,988,830,694,152.25
  5. Step 5: Solve for x
    x = 2,988,830,694,152.25/787,824
  6. Step 6: Final answer
    x = 3,793,779.69

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.