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Finding the Fourth Proportional to 14,847.16, 22,239.76 and 8,905.20

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Solution

The fourth proportional to 14,847.16, 22,239.76 and 8,905.20 is: 13,339.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,847.16 : 22,239.76 = 8,905.20 : x
  2. Step 2: Convert to fraction form
    14,847.16/22,239.76 = 8,905.20/x
  3. Step 3: Cross multiply
    14,847.16x = 22,239.76 × 8,905.20
  4. Step 4: Simplify right side
    14,847.16x = 198,049,584.39
  5. Step 5: Solve for x
    x = 198,049,584.39/14,847.16
  6. Step 6: Final answer
    x = 13,339.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.