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Finding the Fourth Proportional to 18,912, 26,098.56 and 10,529.04

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Solution

The fourth proportional to 18,912, 26,098.56 and 10,529.04 is: 14,530.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,912 : 26,098.56 = 10,529.04 : x
  2. Step 2: Convert to fraction form
    18,912/26,098.56 = 10,529.04/x
  3. Step 3: Cross multiply
    18,912x = 26,098.56 × 10,529.04
  4. Step 4: Simplify right side
    18,912x = 274,792,782.18
  5. Step 5: Solve for x
    x = 274,792,782.18/18,912
  6. Step 6: Final answer
    x = 14,530.08

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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.