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Finding the Fourth Proportional to 18,463.68, 25,480.08 and 10,080.72

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Solution

The fourth proportional to 18,463.68, 25,480.08 and 10,080.72 is: 13,911.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,463.68 : 25,480.08 = 10,080.72 : x
  2. Step 2: Convert to fraction form
    18,463.68/25,480.08 = 10,080.72/x
  3. Step 3: Cross multiply
    18,463.68x = 25,480.08 × 10,080.72
  4. Step 4: Simplify right side
    18,463.68x = 256,857,552.06
  5. Step 5: Solve for x
    x = 256,857,552.06/18,463.68
  6. Step 6: Final answer
    x = 13,911.50

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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.