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Finding the Fourth Proportional to 8,516.03, 11,752.11 and 4,978.53

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Solution

The fourth proportional to 8,516.03, 11,752.11 and 4,978.53 is: 6,870.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,516.03 : 11,752.11 = 4,978.53 : x
  2. Step 2: Convert to fraction form
    8,516.03/11,752.11 = 4,978.53/x
  3. Step 3: Cross multiply
    8,516.03x = 11,752.11 × 4,978.53
  4. Step 4: Simplify right side
    8,516.03x = 58,508,232.20
  5. Step 5: Solve for x
    x = 58,508,232.20/8,516.03
  6. Step 6: Final answer
    x = 6,870.37

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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.