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Finding the Fourth Proportional to 14,500.66, 20,009.96 and 8,531.17

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Solution

The fourth proportional to 14,500.66, 20,009.96 and 8,531.17 is: 11,772.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,500.66 : 20,009.96 = 8,531.17 : x
  2. Step 2: Convert to fraction form
    14,500.66/20,009.96 = 8,531.17/x
  3. Step 3: Cross multiply
    14,500.66x = 20,009.96 × 8,531.17
  4. Step 4: Simplify right side
    14,500.66x = 170,708,370.45
  5. Step 5: Solve for x
    x = 170,708,370.45/14,500.66
  6. Step 6: Final answer
    x = 11,772.46

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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.