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Finding the Fourth Proportional to 14,314.98, 19,754.28 and 7,941.54

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Solution

The fourth proportional to 14,314.98, 19,754.28 and 7,941.54 is: 10,959.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,314.98 : 19,754.28 = 7,941.54 : x
  2. Step 2: Convert to fraction form
    14,314.98/19,754.28 = 7,941.54/x
  3. Step 3: Cross multiply
    14,314.98x = 19,754.28 × 7,941.54
  4. Step 4: Simplify right side
    14,314.98x = 156,879,404.79
  5. Step 5: Solve for x
    x = 156,879,404.79/14,314.98
  6. Step 6: Final answer
    x = 10,959.11

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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.