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Finding the Fourth Proportional to 12,207.99, 16,848.27 and 7,428.27

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Solution

The fourth proportional to 12,207.99, 16,848.27 and 7,428.27 is: 10,251.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,207.99 : 16,848.27 = 7,428.27 : x
  2. Step 2: Convert to fraction form
    12,207.99/16,848.27 = 7,428.27/x
  3. Step 3: Cross multiply
    12,207.99x = 16,848.27 × 7,428.27
  4. Step 4: Simplify right side
    12,207.99x = 125,153,498.59
  5. Step 5: Solve for x
    x = 125,153,498.59/12,207.99
  6. Step 6: Final answer
    x = 10,251.77

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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.