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Finding the Fourth Proportional to 26,651.70, 39,950.01 and 9,999.99

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Solution

The fourth proportional to 26,651.70, 39,950.01 and 9,999.99 is: 14,989.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,651.70 : 39,950.01 = 9,999.99 : x
  2. Step 2: Convert to fraction form
    26,651.70/39,950.01 = 9,999.99/x
  3. Step 3: Cross multiply
    26,651.70x = 39,950.01 × 9,999.99
  4. Step 4: Simplify right side
    26,651.70x = 399,499,700.50
  5. Step 5: Solve for x
    x = 399,499,700.50/26,651.70
  6. Step 6: Final answer
    x = 14,989.65

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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.