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Finding the Fourth Proportional to 69,005.57, 103,434.53 and 35,692.11

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Solution

The fourth proportional to 69,005.57, 103,434.53 and 35,692.11 is: 53,499.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,005.57 : 103,434.53 = 35,692.11 : x
  2. Step 2: Convert to fraction form
    69,005.57/103,434.53 = 35,692.11/x
  3. Step 3: Cross multiply
    69,005.57x = 103,434.53 × 35,692.11
  4. Step 4: Simplify right side
    69,005.57x = 3,691,796,444.10
  5. Step 5: Solve for x
    x = 3,691,796,444.10/69,005.57
  6. Step 6: Final answer
    x = 53,499.98

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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.