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Finding the Third Proportional to 6,430,729.50 and 10,000,387.13

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Solution

The third proportional to 6,430,729.50 and 10,000,387.13 is: 15,551,539.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,430,729.50 : 10,000,387.13 = 10,000,387.13 : x
  2. Step 2: Convert to fraction form
    6,430,729.50/10,000,387.13 = 10,000,387.13/x
  3. Step 3: Cross multiply
    6,430,729.50x = 10,000,387.13 × 10,000,387.13
  4. Step 4: Simplify right side
    6,430,729.50x = 100,007,742,649,865.77
  5. Step 5: Solve for x
    x = 100,007,742,649,865.77/6,430,729.50
  6. Step 6: Final answer
    x = 15,551,539.32

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.