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Finding the Fourth Proportional to 14,552.50, 20,077.41 and 8,178.22

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Solution

The fourth proportional to 14,552.50, 20,077.41 and 8,178.22 is: 11,283.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,552.50 : 20,077.41 = 8,178.22 : x
  2. Step 2: Convert to fraction form
    14,552.50/20,077.41 = 8,178.22/x
  3. Step 3: Cross multiply
    14,552.50x = 20,077.41 × 8,178.22
  4. Step 4: Simplify right side
    14,552.50x = 164,197,476.01
  5. Step 5: Solve for x
    x = 164,197,476.01/14,552.50
  6. Step 6: Final answer
    x = 11,283.11

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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.