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Finding the Fourth Proportional to 10,509,352.40, 15,764,028.60 and 10,509,352.40

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Solution

The fourth proportional to 10,509,352.40, 15,764,028.60 and 10,509,352.40 is: 15,764,028.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,509,352.40 : 15,764,028.60 = 10,509,352.40 : x
  2. Step 2: Convert to fraction form
    10,509,352.40/15,764,028.60 = 10,509,352.40/x
  3. Step 3: Cross multiply
    10,509,352.40x = 15,764,028.60 × 10,509,352.40
  4. Step 4: Simplify right side
    10,509,352.40x = 165,669,731,801,078.66
  5. Step 5: Solve for x
    x = 165,669,731,801,078.66/10,509,352.40
  6. Step 6: Final answer
    x = 15,764,028.60

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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.