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Finding the Fourth Proportional to 32,188.80, 44,389.44 and 21,008.64

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Solution

The fourth proportional to 32,188.80, 44,389.44 and 21,008.64 is: 28,971.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,188.80 : 44,389.44 = 21,008.64 : x
  2. Step 2: Convert to fraction form
    32,188.80/44,389.44 = 21,008.64/x
  3. Step 3: Cross multiply
    32,188.80x = 44,389.44 × 21,008.64
  4. Step 4: Simplify right side
    32,188.80x = 932,561,764.76
  5. Step 5: Solve for x
    x = 932,561,764.76/32,188.80
  6. Step 6: Final answer
    x = 28,971.62

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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.