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Finding the Fourth Proportional to 14,792.44, 20,416.21 and 8,742.44

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Solution

The fourth proportional to 14,792.44, 20,416.21 and 8,742.44 is: 12,066.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,792.44 : 20,416.21 = 8,742.44 : x
  2. Step 2: Convert to fraction form
    14,792.44/20,416.21 = 8,742.44/x
  3. Step 3: Cross multiply
    14,792.44x = 20,416.21 × 8,742.44
  4. Step 4: Simplify right side
    14,792.44x = 178,487,345.16
  5. Step 5: Solve for x
    x = 178,487,345.16/14,792.44
  6. Step 6: Final answer
    x = 12,066.12

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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.