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Finding the Fourth Proportional to 14,753.76, 20,359.93 and 8,039.45

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Solution

The fourth proportional to 14,753.76, 20,359.93 and 8,039.45 is: 11,094.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,753.76 : 20,359.93 = 8,039.45 : x
  2. Step 2: Convert to fraction form
    14,753.76/20,359.93 = 8,039.45/x
  3. Step 3: Cross multiply
    14,753.76x = 20,359.93 × 8,039.45
  4. Step 4: Simplify right side
    14,753.76x = 163,682,497.24
  5. Step 5: Solve for x
    x = 163,682,497.24/14,753.76
  6. Step 6: Final answer
    x = 11,094.29

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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.