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Finding the Fourth Proportional to 19,274.64, 28,853.64 and 17,816.64

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Solution

The fourth proportional to 19,274.64, 28,853.64 and 17,816.64 is: 26,671.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,274.64 : 28,853.64 = 17,816.64 : x
  2. Step 2: Convert to fraction form
    19,274.64/28,853.64 = 17,816.64/x
  3. Step 3: Cross multiply
    19,274.64x = 28,853.64 × 17,816.64
  4. Step 4: Simplify right side
    19,274.64x = 514,074,916.57
  5. Step 5: Solve for x
    x = 514,074,916.57/19,274.64
  6. Step 6: Final answer
    x = 26,671.05

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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.