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Finding the Fourth Proportional to 18,752.08, 28,106.04 and 7,651.84

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Solution

The fourth proportional to 18,752.08, 28,106.04 and 7,651.84 is: 11,468.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,752.08 : 28,106.04 = 7,651.84 : x
  2. Step 2: Convert to fraction form
    18,752.08/28,106.04 = 7,651.84/x
  3. Step 3: Cross multiply
    18,752.08x = 28,106.04 × 7,651.84
  4. Step 4: Simplify right side
    18,752.08x = 215,062,921.11
  5. Step 5: Solve for x
    x = 215,062,921.11/18,752.08
  6. Step 6: Final answer
    x = 11,468.75

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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.