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Finding the Fourth Proportional to 36,689.16, 55,041.12 and 11,728.44

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Solution

The fourth proportional to 36,689.16, 55,041.12 and 11,728.44 is: 17,595.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,689.16 : 55,041.12 = 11,728.44 : x
  2. Step 2: Convert to fraction form
    36,689.16/55,041.12 = 11,728.44/x
  3. Step 3: Cross multiply
    36,689.16x = 55,041.12 × 11,728.44
  4. Step 4: Simplify right side
    36,689.16x = 645,546,473.45
  5. Step 5: Solve for x
    x = 645,546,473.45/36,689.16
  6. Step 6: Final answer
    x = 17,595.02

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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.