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Finding the Fourth Proportional to 32,996.64, 45,543.72 and 18,857.80

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Solution

The fourth proportional to 32,996.64, 45,543.72 and 18,857.80 is: 26,028.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,996.64 : 45,543.72 = 18,857.80 : x
  2. Step 2: Convert to fraction form
    32,996.64/45,543.72 = 18,857.80/x
  3. Step 3: Cross multiply
    32,996.64x = 45,543.72 × 18,857.80
  4. Step 4: Simplify right side
    32,996.64x = 858,854,363.02
  5. Step 5: Solve for x
    x = 858,854,363.02/32,996.64
  6. Step 6: Final answer
    x = 26,028.54

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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.