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Finding the Third Proportional to 5,236,987.50 and 8,127,808.50

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Solution

The third proportional to 5,236,987.50 and 8,127,808.50 is: 12,614,364.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,236,987.50 : 8,127,808.50 = 8,127,808.50 : x
  2. Step 2: Convert to fraction form
    5,236,987.50/8,127,808.50 = 8,127,808.50/x
  3. Step 3: Cross multiply
    5,236,987.50x = 8,127,808.50 × 8,127,808.50
  4. Step 4: Simplify right side
    5,236,987.50x = 66,061,271,012,672.25
  5. Step 5: Solve for x
    x = 66,061,271,012,672.25/5,236,987.50
  6. Step 6: Final answer
    x = 12,614,364.84

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.