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Finding the Fourth Proportional to 14,626.76, 20,186.52 and 8,965.28

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Solution

The fourth proportional to 14,626.76, 20,186.52 and 8,965.28 is: 12,373.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,626.76 : 20,186.52 = 8,965.28 : x
  2. Step 2: Convert to fraction form
    14,626.76/20,186.52 = 8,965.28/x
  3. Step 3: Cross multiply
    14,626.76x = 20,186.52 × 8,965.28
  4. Step 4: Simplify right side
    14,626.76x = 180,977,804.03
  5. Step 5: Solve for x
    x = 180,977,804.03/14,626.76
  6. Step 6: Final answer
    x = 12,373.06

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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.