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Finding the Fourth Proportional to 43,630.93, 65,479.02 and 16,981.12

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Solution

The fourth proportional to 43,630.93, 65,479.02 and 16,981.12 is: 25,484.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,630.93 : 65,479.02 = 16,981.12 : x
  2. Step 2: Convert to fraction form
    43,630.93/65,479.02 = 16,981.12/x
  3. Step 3: Cross multiply
    43,630.93x = 65,479.02 × 16,981.12
  4. Step 4: Simplify right side
    43,630.93x = 1,111,907,096.10
  5. Step 5: Solve for x
    x = 1,111,907,096.10/43,630.93
  6. Step 6: Final answer
    x = 25,484.38

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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.