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Finding the Fourth Proportional to 61,263.57, 91,900.50 and 16,890.30

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Solution

The fourth proportional to 61,263.57, 91,900.50 and 16,890.30 is: 25,336.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,263.57 : 91,900.50 = 16,890.30 : x
  2. Step 2: Convert to fraction form
    61,263.57/91,900.50 = 16,890.30/x
  3. Step 3: Cross multiply
    61,263.57x = 91,900.50 × 16,890.30
  4. Step 4: Simplify right side
    61,263.57x = 1,552,227,015.15
  5. Step 5: Solve for x
    x = 1,552,227,015.15/61,263.57
  6. Step 6: Final answer
    x = 25,336.87

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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.