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Finding the Fourth Proportional to 12,358.93, 17,063.07 and 9,520.96

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Solution

The fourth proportional to 12,358.93, 17,063.07 and 9,520.96 is: 13,144.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,358.93 : 17,063.07 = 9,520.96 : x
  2. Step 2: Convert to fraction form
    12,358.93/17,063.07 = 9,520.96/x
  3. Step 3: Cross multiply
    12,358.93x = 17,063.07 × 9,520.96
  4. Step 4: Simplify right side
    12,358.93x = 162,456,806.95
  5. Step 5: Solve for x
    x = 162,456,806.95/12,358.93
  6. Step 6: Final answer
    x = 13,144.89

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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.