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Finding the Fourth Proportional to 32,980.64, 45,516.56 and 18,835.61

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Solution

The fourth proportional to 32,980.64, 45,516.56 and 18,835.61 is: 25,995.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,980.64 : 45,516.56 = 18,835.61 : x
  2. Step 2: Convert to fraction form
    32,980.64/45,516.56 = 18,835.61/x
  3. Step 3: Cross multiply
    32,980.64x = 45,516.56 × 18,835.61
  4. Step 4: Simplify right side
    32,980.64x = 857,331,850.94
  5. Step 5: Solve for x
    x = 857,331,850.94/32,980.64
  6. Step 6: Final answer
    x = 25,995.01

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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.