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Finding the Fourth Proportional to 19,274.64, 28,913.16 and 6,625.14

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Solution

The fourth proportional to 19,274.64, 28,913.16 and 6,625.14 is: 9,938.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,274.64 : 28,913.16 = 6,625.14 : x
  2. Step 2: Convert to fraction form
    19,274.64/28,913.16 = 6,625.14/x
  3. Step 3: Cross multiply
    19,274.64x = 28,913.16 × 6,625.14
  4. Step 4: Simplify right side
    19,274.64x = 191,553,732.84
  5. Step 5: Solve for x
    x = 191,553,732.84/19,274.64
  6. Step 6: Final answer
    x = 9,938.12

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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.