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Finding the Fourth Proportional to 13,329,315.84, 19,978,853.88 and 6,125,961.54

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Solution

The fourth proportional to 13,329,315.84, 19,978,853.88 and 6,125,961.54 is: 9,181,993.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,329,315.84 : 19,978,853.88 = 6,125,961.54 : x
  2. Step 2: Convert to fraction form
    13,329,315.84/19,978,853.88 = 6,125,961.54/x
  3. Step 3: Cross multiply
    13,329,315.84x = 19,978,853.88 × 6,125,961.54
  4. Step 4: Simplify right side
    13,329,315.84x = 122,389,690,482,159.77
  5. Step 5: Solve for x
    x = 122,389,690,482,159.77/13,329,315.84
  6. Step 6: Final answer
    x = 9,181,993.43

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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.