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Finding the Fourth Proportional to 7,889,744.40, 11,834,616.60 and 3,402,020.40

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Solution

The fourth proportional to 7,889,744.40, 11,834,616.60 and 3,402,020.40 is: 5,103,030.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,889,744.40 : 11,834,616.60 = 3,402,020.40 : x
  2. Step 2: Convert to fraction form
    7,889,744.40/11,834,616.60 = 3,402,020.40/x
  3. Step 3: Cross multiply
    7,889,744.40x = 11,834,616.60 × 3,402,020.40
  4. Step 4: Simplify right side
    7,889,744.40x = 40,261,607,099,378.64
  5. Step 5: Solve for x
    x = 40,261,607,099,378.64/7,889,744.40
  6. Step 6: Final answer
    x = 5,103,030.60

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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.