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Finding the Fourth Proportional to 49,718.56, 74,581.48 and 14,659.72

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Solution

The fourth proportional to 49,718.56, 74,581.48 and 14,659.72 is: 21,990.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,718.56 : 74,581.48 = 14,659.72 : x
  2. Step 2: Convert to fraction form
    49,718.56/74,581.48 = 14,659.72/x
  3. Step 3: Cross multiply
    49,718.56x = 74,581.48 × 14,659.72
  4. Step 4: Simplify right side
    49,718.56x = 1,093,343,613.99
  5. Step 5: Solve for x
    x = 1,093,343,613.99/49,718.56
  6. Step 6: Final answer
    x = 21,990.65

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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.