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Finding the Fourth Proportional to 10,363,346.98, 15,558,490.98 and 7,968,873.10

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Solution

The fourth proportional to 10,363,346.98, 15,558,490.98 and 7,968,873.10 is: 11,963,667.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,363,346.98 : 15,558,490.98 = 7,968,873.10 : x
  2. Step 2: Convert to fraction form
    10,363,346.98/15,558,490.98 = 7,968,873.10/x
  3. Step 3: Cross multiply
    10,363,346.98x = 15,558,490.98 × 7,968,873.10
  4. Step 4: Simplify right side
    10,363,346.98x = 123,983,640,247,114.64
  5. Step 5: Solve for x
    x = 123,983,640,247,114.64/10,363,346.98
  6. Step 6: Final answer
    x = 11,963,667.77

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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.