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Finding the Fourth Proportional to 12,477,782, 18,716,673 and 4,499,606

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Solution

The fourth proportional to 12,477,782, 18,716,673 and 4,499,606 is: 6,749,409

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,477,782 : 18,716,673 = 4,499,606 : x
  2. Step 2: Convert to fraction form
    12,477,782/18,716,673 = 4,499,606/x
  3. Step 3: Cross multiply
    12,477,782x = 18,716,673 × 4,499,606
  4. Step 4: Simplify right side
    12,477,782x = 84,217,654,130,838
  5. Step 5: Solve for x
    x = 84,217,654,130,838/12,477,782
  6. Step 6: Final answer
    x = 6,749,409

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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.