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Finding the Fourth Proportional to 35,187.08, 52,780.59 and 8,891.81

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Solution

The fourth proportional to 35,187.08, 52,780.59 and 8,891.81 is: 13,337.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,187.08 : 52,780.59 = 8,891.81 : x
  2. Step 2: Convert to fraction form
    35,187.08/52,780.59 = 8,891.81/x
  3. Step 3: Cross multiply
    35,187.08x = 52,780.59 × 8,891.81
  4. Step 4: Simplify right side
    35,187.08x = 469,314,714.06
  5. Step 5: Solve for x
    x = 469,314,714.06/35,187.08
  6. Step 6: Final answer
    x = 13,337.70

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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.