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Finding the Fourth Proportional to 7,802,849.60, 11,704,274.40 and 7,047,022.40

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Solution

The fourth proportional to 7,802,849.60, 11,704,274.40 and 7,047,022.40 is: 10,570,533.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,802,849.60 : 11,704,274.40 = 7,047,022.40 : x
  2. Step 2: Convert to fraction form
    7,802,849.60/11,704,274.40 = 7,047,022.40/x
  3. Step 3: Cross multiply
    7,802,849.60x = 11,704,274.40 × 7,047,022.40
  4. Step 4: Simplify right side
    7,802,849.60x = 82,480,283,872,546.56
  5. Step 5: Solve for x
    x = 82,480,283,872,546.56/7,802,849.60
  6. Step 6: Final answer
    x = 10,570,533.60

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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.