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Finding the Fourth Proportional to 35,903.50, 53,857.41 and 11,279.50

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Solution

The fourth proportional to 35,903.50, 53,857.41 and 11,279.50 is: 16,919.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,903.50 : 53,857.41 = 11,279.50 : x
  2. Step 2: Convert to fraction form
    35,903.50/53,857.41 = 11,279.50/x
  3. Step 3: Cross multiply
    35,903.50x = 53,857.41 × 11,279.50
  4. Step 4: Simplify right side
    35,903.50x = 607,484,656.10
  5. Step 5: Solve for x
    x = 607,484,656.10/35,903.50
  6. Step 6: Final answer
    x = 16,919.93

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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.