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Finding the Fourth Proportional to 15,551,993.80, 23,327,990.70 and 9,571,731.40

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Solution

The fourth proportional to 15,551,993.80, 23,327,990.70 and 9,571,731.40 is: 14,357,597.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,551,993.80 : 23,327,990.70 = 9,571,731.40 : x
  2. Step 2: Convert to fraction form
    15,551,993.80/23,327,990.70 = 9,571,731.40/x
  3. Step 3: Cross multiply
    15,551,993.80x = 23,327,990.70 × 9,571,731.40
  4. Step 4: Simplify right side
    15,551,993.80x = 223,289,261,082,097.97
  5. Step 5: Solve for x
    x = 223,289,261,082,097.97/15,551,993.80
  6. Step 6: Final answer
    x = 14,357,597.10

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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.