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Finding the Fourth Proportional to 19,264.80, 28,903.10 and 17,277.87

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Solution

The fourth proportional to 19,264.80, 28,903.10 and 17,277.87 is: 25,922.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,264.80 : 28,903.10 = 17,277.87 : x
  2. Step 2: Convert to fraction form
    19,264.80/28,903.10 = 17,277.87/x
  3. Step 3: Cross multiply
    19,264.80x = 28,903.10 × 17,277.87
  4. Step 4: Simplify right side
    19,264.80x = 499,384,004.40
  5. Step 5: Solve for x
    x = 499,384,004.40/19,264.80
  6. Step 6: Final answer
    x = 25,922.10

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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.