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Finding the Fourth Proportional to 7,118,494.62, 9,823,514.04 and 3,855,307.38

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Solution

The fourth proportional to 7,118,494.62, 9,823,514.04 and 3,855,307.38 is: 5,320,319.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,118,494.62 : 9,823,514.04 = 3,855,307.38 : x
  2. Step 2: Convert to fraction form
    7,118,494.62/9,823,514.04 = 3,855,307.38/x
  3. Step 3: Cross multiply
    7,118,494.62x = 9,823,514.04 × 3,855,307.38
  4. Step 4: Simplify right side
    7,118,494.62x = 37,872,666,175,945.61
  5. Step 5: Solve for x
    x = 37,872,666,175,945.61/7,118,494.62
  6. Step 6: Final answer
    x = 5,320,319.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.