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Finding the Fourth Proportional to 8,487.59, 11,713.01 and 4,711.37

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Solution

The fourth proportional to 8,487.59, 11,713.01 and 4,711.37 is: 6,501.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,487.59 : 11,713.01 = 4,711.37 : x
  2. Step 2: Convert to fraction form
    8,487.59/11,713.01 = 4,711.37/x
  3. Step 3: Cross multiply
    8,487.59x = 11,713.01 × 4,711.37
  4. Step 4: Simplify right side
    8,487.59x = 55,184,241.80
  5. Step 5: Solve for x
    x = 55,184,241.80/8,487.59
  6. Step 6: Final answer
    x = 6,501.76

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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.