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Finding the Fourth Proportional to 10,657.68, 14,703.74 and 6,178.96

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Solution

The fourth proportional to 10,657.68, 14,703.74 and 6,178.96 is: 8,524.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,657.68 : 14,703.74 = 6,178.96 : x
  2. Step 2: Convert to fraction form
    10,657.68/14,703.74 = 6,178.96/x
  3. Step 3: Cross multiply
    10,657.68x = 14,703.74 × 6,178.96
  4. Step 4: Simplify right side
    10,657.68x = 90,853,790.42
  5. Step 5: Solve for x
    x = 90,853,790.42/10,657.68
  6. Step 6: Final answer
    x = 8,524.73

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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.