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Finding the Fourth Proportional to 14,209,372, 19,609,399.92 and 7,770,844

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Solution

The fourth proportional to 14,209,372, 19,609,399.92 and 7,770,844 is: 10,724,019.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,209,372 : 19,609,399.92 = 7,770,844 : x
  2. Step 2: Convert to fraction form
    14,209,372/19,609,399.92 = 7,770,844/x
  3. Step 3: Cross multiply
    14,209,372x = 19,609,399.92 × 7,770,844
  4. Step 4: Simplify right side
    14,209,372x = 152,381,587,711,932.50
  5. Step 5: Solve for x
    x = 152,381,587,711,932.50/14,209,372
  6. Step 6: Final answer
    x = 10,724,019.87

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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.