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Finding the Fourth Proportional to 8,507.97, 12,763.26 and 4,125.69

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Solution

The fourth proportional to 8,507.97, 12,763.26 and 4,125.69 is: 6,189.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,507.97 : 12,763.26 = 4,125.69 : x
  2. Step 2: Convert to fraction form
    8,507.97/12,763.26 = 4,125.69/x
  3. Step 3: Cross multiply
    8,507.97x = 12,763.26 × 4,125.69
  4. Step 4: Simplify right side
    8,507.97x = 52,657,254.15
  5. Step 5: Solve for x
    x = 52,657,254.15/8,507.97
  6. Step 6: Final answer
    x = 6,189.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.