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Finding the Fourth Proportional to 18,465.62, 25,481.66 and 10,507.10

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Solution

The fourth proportional to 18,465.62, 25,481.66 and 10,507.10 is: 14,499.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,465.62 : 25,481.66 = 10,507.10 : x
  2. Step 2: Convert to fraction form
    18,465.62/25,481.66 = 10,507.10/x
  3. Step 3: Cross multiply
    18,465.62x = 25,481.66 × 10,507.10
  4. Step 4: Simplify right side
    18,465.62x = 267,738,349.79
  5. Step 5: Solve for x
    x = 267,738,349.79/18,465.62
  6. Step 6: Final answer
    x = 14,499.29

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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.