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Finding the Fourth Proportional to 8,507.43, 12,752.94 and 5,727.89

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Solution

The fourth proportional to 8,507.43, 12,752.94 and 5,727.89 is: 8,586.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,507.43 : 12,752.94 = 5,727.89 : x
  2. Step 2: Convert to fraction form
    8,507.43/12,752.94 = 5,727.89/x
  3. Step 3: Cross multiply
    8,507.43x = 12,752.94 × 5,727.89
  4. Step 4: Simplify right side
    8,507.43x = 73,047,454.99
  5. Step 5: Solve for x
    x = 73,047,454.99/8,507.43
  6. Step 6: Final answer
    x = 8,586.31

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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.