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Finding the Fourth Proportional to 9,920,466.56, 14,846,724.80 and 6,891,249.28

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Solution

The fourth proportional to 9,920,466.56, 14,846,724.80 and 6,891,249.28 is: 10,313,273.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,920,466.56 : 14,846,724.80 = 6,891,249.28 : x
  2. Step 2: Convert to fraction form
    9,920,466.56/14,846,724.80 = 6,891,249.28/x
  3. Step 3: Cross multiply
    9,920,466.56x = 14,846,724.80 × 6,891,249.28
  4. Step 4: Simplify right side
    9,920,466.56x = 102,312,481,588,358.16
  5. Step 5: Solve for x
    x = 102,312,481,588,358.16/9,920,466.56
  6. Step 6: Final answer
    x = 10,313,273.17

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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.