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Finding the Fourth Proportional to 9,245,605.14, 12,759,311.14 and 5,115,569.10

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Solution

The fourth proportional to 9,245,605.14, 12,759,311.14 and 5,115,569.10 is: 7,059,693.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,245,605.14 : 12,759,311.14 = 5,115,569.10 : x
  2. Step 2: Convert to fraction form
    9,245,605.14/12,759,311.14 = 5,115,569.10/x
  3. Step 3: Cross multiply
    9,245,605.14x = 12,759,311.14 × 5,115,569.10
  4. Step 4: Simplify right side
    9,245,605.14x = 65,271,137,805,069.77
  5. Step 5: Solve for x
    x = 65,271,137,805,069.77/9,245,605.14
  6. Step 6: Final answer
    x = 7,059,693.42

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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.