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Finding the Fourth Proportional to 14,323.50, 19,765.92 and 7,949.93

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Solution

The fourth proportional to 14,323.50, 19,765.92 and 7,949.93 is: 10,970.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,323.50 : 19,765.92 = 7,949.93 : x
  2. Step 2: Convert to fraction form
    14,323.50/19,765.92 = 7,949.93/x
  3. Step 3: Cross multiply
    14,323.50x = 19,765.92 × 7,949.93
  4. Step 4: Simplify right side
    14,323.50x = 157,137,805.94
  5. Step 5: Solve for x
    x = 157,137,805.94/14,323.50
  6. Step 6: Final answer
    x = 10,970.63

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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.