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Finding the Fourth Proportional to 20,235.49, 27,925.01 and 11,739.22

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Solution

The fourth proportional to 20,235.49, 27,925.01 and 11,739.22 is: 16,200.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,235.49 : 27,925.01 = 11,739.22 : x
  2. Step 2: Convert to fraction form
    20,235.49/27,925.01 = 11,739.22/x
  3. Step 3: Cross multiply
    20,235.49x = 27,925.01 × 11,739.22
  4. Step 4: Simplify right side
    20,235.49x = 327,817,835.89
  5. Step 5: Solve for x
    x = 327,817,835.89/20,235.49
  6. Step 6: Final answer
    x = 16,200.14

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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.