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Finding the Fourth Proportional to 8,518.74, 11,755.16 and 4,741.62

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Solution

The fourth proportional to 8,518.74, 11,755.16 and 4,741.62 is: 6,543.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,518.74 : 11,755.16 = 4,741.62 : x
  2. Step 2: Convert to fraction form
    8,518.74/11,755.16 = 4,741.62/x
  3. Step 3: Cross multiply
    8,518.74x = 11,755.16 × 4,741.62
  4. Step 4: Simplify right side
    8,518.74x = 55,738,501.76
  5. Step 5: Solve for x
    x = 55,738,501.76/8,518.74
  6. Step 6: Final answer
    x = 6,543.05

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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.