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Finding the Fourth Proportional to 19,112.63, 28,655.85 and 9,734.49

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Solution

The fourth proportional to 19,112.63, 28,655.85 and 9,734.49 is: 14,595.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,112.63 : 28,655.85 = 9,734.49 : x
  2. Step 2: Convert to fraction form
    19,112.63/28,655.85 = 9,734.49/x
  3. Step 3: Cross multiply
    19,112.63x = 28,655.85 × 9,734.49
  4. Step 4: Simplify right side
    19,112.63x = 278,950,085.27
  5. Step 5: Solve for x
    x = 278,950,085.27/19,112.63
  6. Step 6: Final answer
    x = 14,595.07

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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.