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Finding the Fourth Proportional to 14,018.84, 19,345.94 and 7,645.41

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Solution

The fourth proportional to 14,018.84, 19,345.94 and 7,645.41 is: 10,550.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,018.84 : 19,345.94 = 7,645.41 : x
  2. Step 2: Convert to fraction form
    14,018.84/19,345.94 = 7,645.41/x
  3. Step 3: Cross multiply
    14,018.84x = 19,345.94 × 7,645.41
  4. Step 4: Simplify right side
    14,018.84x = 147,907,604.91
  5. Step 5: Solve for x
    x = 147,907,604.91/14,018.84
  6. Step 6: Final answer
    x = 10,550.63

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1.5x scale

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.