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Finding the Fourth Proportional to 10,985.22, 16,473.11 and 6,818.99

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Solution

The fourth proportional to 10,985.22, 16,473.11 and 6,818.99 is: 10,225.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,985.22 : 16,473.11 = 6,818.99 : x
  2. Step 2: Convert to fraction form
    10,985.22/16,473.11 = 6,818.99/x
  3. Step 3: Cross multiply
    10,985.22x = 16,473.11 × 6,818.99
  4. Step 4: Simplify right side
    10,985.22x = 112,329,855.90
  5. Step 5: Solve for x
    x = 112,329,855.90/10,985.22
  6. Step 6: Final answer
    x = 10,225.54

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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.