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Finding the Fourth Proportional to 36,458, 50,312.08 and 19,691.04

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Solution

The fourth proportional to 36,458, 50,312.08 and 19,691.04 is: 27,173.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,458 : 50,312.08 = 19,691.04 : x
  2. Step 2: Convert to fraction form
    36,458/50,312.08 = 19,691.04/x
  3. Step 3: Cross multiply
    36,458x = 50,312.08 × 19,691.04
  4. Step 4: Simplify right side
    36,458x = 990,697,179.76
  5. Step 5: Solve for x
    x = 990,697,179.76/36,458
  6. Step 6: Final answer
    x = 27,173.66

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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.