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Finding the Fourth Proportional to 18,614.41, 25,687.53 and 10,656.16

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Solution

The fourth proportional to 18,614.41, 25,687.53 and 10,656.16 is: 14,705.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,614.41 : 25,687.53 = 10,656.16 : x
  2. Step 2: Convert to fraction form
    18,614.41/25,687.53 = 10,656.16/x
  3. Step 3: Cross multiply
    18,614.41x = 25,687.53 × 10,656.16
  4. Step 4: Simplify right side
    18,614.41x = 273,730,365.47
  5. Step 5: Solve for x
    x = 273,730,365.47/18,614.41
  6. Step 6: Final answer
    x = 14,705.30

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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.