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Finding the Fourth Proportional to 14,901.76, 20,563.52 and 8,186.08

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Solution

The fourth proportional to 14,901.76, 20,563.52 and 8,186.08 is: 11,296.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,901.76 : 20,563.52 = 8,186.08 : x
  2. Step 2: Convert to fraction form
    14,901.76/20,563.52 = 8,186.08/x
  3. Step 3: Cross multiply
    14,901.76x = 20,563.52 × 8,186.08
  4. Step 4: Simplify right side
    14,901.76x = 168,334,619.80
  5. Step 5: Solve for x
    x = 168,334,619.80/14,901.76
  6. Step 6: Final answer
    x = 11,296.29

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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.