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Finding the Fourth Proportional to 14,229.61, 19,636.83 and 7,941.97

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Solution

The fourth proportional to 14,229.61, 19,636.83 and 7,941.97 is: 10,959.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,229.61 : 19,636.83 = 7,941.97 : x
  2. Step 2: Convert to fraction form
    14,229.61/19,636.83 = 7,941.97/x
  3. Step 3: Cross multiply
    14,229.61x = 19,636.83 × 7,941.97
  4. Step 4: Simplify right side
    14,229.61x = 155,955,114.76
  5. Step 5: Solve for x
    x = 155,955,114.76/14,229.61
  6. Step 6: Final answer
    x = 10,959.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.