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Finding the Fourth Proportional to 45,351.49, 68,009.72 and 14,949.32

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Solution

The fourth proportional to 45,351.49, 68,009.72 and 14,949.32 is: 22,418.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,351.49 : 68,009.72 = 14,949.32 : x
  2. Step 2: Convert to fraction form
    45,351.49/68,009.72 = 14,949.32/x
  3. Step 3: Cross multiply
    45,351.49x = 68,009.72 × 14,949.32
  4. Step 4: Simplify right side
    45,351.49x = 1,016,699,065.65
  5. Step 5: Solve for x
    x = 1,016,699,065.65/45,351.49
  6. Step 6: Final answer
    x = 22,418.21

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1.5x scale

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.