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Finding the Fourth Proportional to 10,069.99, 13,900.26 and 8,647.95

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Solution

The fourth proportional to 10,069.99, 13,900.26 and 8,647.95 is: 11,937.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,069.99 : 13,900.26 = 8,647.95 : x
  2. Step 2: Convert to fraction form
    10,069.99/13,900.26 = 8,647.95/x
  3. Step 3: Cross multiply
    10,069.99x = 13,900.26 × 8,647.95
  4. Step 4: Simplify right side
    10,069.99x = 120,208,753.47
  5. Step 5: Solve for x
    x = 120,208,753.47/10,069.99
  6. Step 6: Final answer
    x = 11,937.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.