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Finding the Fourth Proportional to 45,718.76, 68,568.54 and 17,629.16

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Solution

The fourth proportional to 45,718.76, 68,568.54 and 17,629.16 is: 26,440.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,718.76 : 68,568.54 = 17,629.16 : x
  2. Step 2: Convert to fraction form
    45,718.76/68,568.54 = 17,629.16/x
  3. Step 3: Cross multiply
    45,718.76x = 68,568.54 × 17,629.16
  4. Step 4: Simplify right side
    45,718.76x = 1,208,805,762.63
  5. Step 5: Solve for x
    x = 1,208,805,762.63/45,718.76
  6. Step 6: Final answer
    x = 26,440.04

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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.