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Finding the Fourth Proportional to 8,669,170.68, 12,995,711.40 and 3,201,245.40

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Solution

The fourth proportional to 8,669,170.68, 12,995,711.40 and 3,201,245.40 is: 4,798,897.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,669,170.68 : 12,995,711.40 = 3,201,245.40 : x
  2. Step 2: Convert to fraction form
    8,669,170.68/12,995,711.40 = 3,201,245.40/x
  3. Step 3: Cross multiply
    8,669,170.68x = 12,995,711.40 × 3,201,245.40
  4. Step 4: Simplify right side
    8,669,170.68x = 41,602,461,338,977.56
  5. Step 5: Solve for x
    x = 41,602,461,338,977.56/8,669,170.68
  6. Step 6: Final answer
    x = 4,798,897.48

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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.