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Finding the Fourth Proportional to 19,274.72, 28,892.38 and 10,937.12

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Solution

The fourth proportional to 19,274.72, 28,892.38 and 10,937.12 is: 16,394.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,274.72 : 28,892.38 = 10,937.12 : x
  2. Step 2: Convert to fraction form
    19,274.72/28,892.38 = 10,937.12/x
  3. Step 3: Cross multiply
    19,274.72x = 28,892.38 × 10,937.12
  4. Step 4: Simplify right side
    19,274.72x = 315,999,363.69
  5. Step 5: Solve for x
    x = 315,999,363.69/19,274.72
  6. Step 6: Final answer
    x = 16,394.50

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1.5x scale

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.