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Finding the Fourth Proportional to 13,955.13, 20,908.08 and 7,366.77

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Solution

The fourth proportional to 13,955.13, 20,908.08 and 7,366.77 is: 11,037.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,955.13 : 20,908.08 = 7,366.77 : x
  2. Step 2: Convert to fraction form
    13,955.13/20,908.08 = 7,366.77/x
  3. Step 3: Cross multiply
    13,955.13x = 20,908.08 × 7,366.77
  4. Step 4: Simplify right side
    13,955.13x = 154,025,016.50
  5. Step 5: Solve for x
    x = 154,025,016.50/13,955.13
  6. Step 6: Final answer
    x = 11,037.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.