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Finding the Fourth Proportional to 8,240,662.70, 12,359,827.65 and 2,561,461.10

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Solution

The fourth proportional to 8,240,662.70, 12,359,827.65 and 2,561,461.10 is: 3,841,829.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,240,662.70 : 12,359,827.65 = 2,561,461.10 : x
  2. Step 2: Convert to fraction form
    8,240,662.70/12,359,827.65 = 2,561,461.10/x
  3. Step 3: Cross multiply
    8,240,662.70x = 12,359,827.65 × 2,561,461.10
  4. Step 4: Simplify right side
    8,240,662.70x = 31,659,217,728,179.42
  5. Step 5: Solve for x
    x = 31,659,217,728,179.42/8,240,662.70
  6. Step 6: Final answer
    x = 3,841,829.10

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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.