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Finding the Fourth Proportional to 12,051.99, 16,631.93 and 7,272.18

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Solution

The fourth proportional to 12,051.99, 16,631.93 and 7,272.18 is: 10,035.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,051.99 : 16,631.93 = 7,272.18 : x
  2. Step 2: Convert to fraction form
    12,051.99/16,631.93 = 7,272.18/x
  3. Step 3: Cross multiply
    12,051.99x = 16,631.93 × 7,272.18
  4. Step 4: Simplify right side
    12,051.99x = 120,950,406.89
  5. Step 5: Solve for x
    x = 120,950,406.89/12,051.99
  6. Step 6: Final answer
    x = 10,035.72

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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.