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Finding the Fourth Proportional to 18,957.68, 26,162.16 and 10,574

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Solution

The fourth proportional to 18,957.68, 26,162.16 and 10,574 is: 14,592.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,957.68 : 26,162.16 = 10,574 : x
  2. Step 2: Convert to fraction form
    18,957.68/26,162.16 = 10,574/x
  3. Step 3: Cross multiply
    18,957.68x = 26,162.16 × 10,574
  4. Step 4: Simplify right side
    18,957.68x = 276,638,679.84
  5. Step 5: Solve for x
    x = 276,638,679.84/18,957.68
  6. Step 6: Final answer
    x = 14,592.43

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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.