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Finding the Fourth Proportional to 45,718.56, 68,523.84 and 17,621.28

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Solution

The fourth proportional to 45,718.56, 68,523.84 and 17,621.28 is: 26,411.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,718.56 : 68,523.84 = 17,621.28 : x
  2. Step 2: Convert to fraction form
    45,718.56/68,523.84 = 17,621.28/x
  3. Step 3: Cross multiply
    45,718.56x = 68,523.84 × 17,621.28
  4. Step 4: Simplify right side
    45,718.56x = 1,207,477,771.32
  5. Step 5: Solve for x
    x = 1,207,477,771.32/45,718.56
  6. Step 6: Final answer
    x = 26,411.11

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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.