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Finding the Fourth Proportional to 12,475.92, 17,209.08 and 7,436.91

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Solution

The fourth proportional to 12,475.92, 17,209.08 and 7,436.91 is: 10,258.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,475.92 : 17,209.08 = 7,436.91 : x
  2. Step 2: Convert to fraction form
    12,475.92/17,209.08 = 7,436.91/x
  3. Step 3: Cross multiply
    12,475.92x = 17,209.08 × 7,436.91
  4. Step 4: Simplify right side
    12,475.92x = 127,982,379.14
  5. Step 5: Solve for x
    x = 127,982,379.14/12,475.92
  6. Step 6: Final answer
    x = 10,258.35

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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.