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Finding the Fourth Proportional to 12,526.92, 17,295.12 and 7,818.12

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Solution

The fourth proportional to 12,526.92, 17,295.12 and 7,818.12 is: 10,793.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,526.92 : 17,295.12 = 7,818.12 : x
  2. Step 2: Convert to fraction form
    12,526.92/17,295.12 = 7,818.12/x
  3. Step 3: Cross multiply
    12,526.92x = 17,295.12 × 7,818.12
  4. Step 4: Simplify right side
    12,526.92x = 135,215,323.57
  5. Step 5: Solve for x
    x = 135,215,323.57/12,526.92
  6. Step 6: Final answer
    x = 10,793.98

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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.