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Finding the Fourth Proportional to 18,150.64, 25,063.64 and 11,448.24

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Solution

The fourth proportional to 18,150.64, 25,063.64 and 11,448.24 is: 15,808.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,150.64 : 25,063.64 = 11,448.24 : x
  2. Step 2: Convert to fraction form
    18,150.64/25,063.64 = 11,448.24/x
  3. Step 3: Cross multiply
    18,150.64x = 25,063.64 × 11,448.24
  4. Step 4: Simplify right side
    18,150.64x = 286,934,565.99
  5. Step 5: Solve for x
    x = 286,934,565.99/18,150.64
  6. Step 6: Final answer
    x = 15,808.51

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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.