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Finding the Third Proportional to 5,402,149.88 and 8,240,423.63

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Solution

The third proportional to 5,402,149.88 and 8,240,423.63 is: 12,569,918.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,402,149.88 : 8,240,423.63 = 8,240,423.63 : x
  2. Step 2: Convert to fraction form
    5,402,149.88/8,240,423.63 = 8,240,423.63/x
  3. Step 3: Cross multiply
    5,402,149.88x = 8,240,423.63 × 8,240,423.63
  4. Step 4: Simplify right side
    5,402,149.88x = 67,904,581,519,458.14
  5. Step 5: Solve for x
    x = 67,904,581,519,458.14/5,402,149.88
  6. Step 6: Final answer
    x = 12,569,918.10

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.