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Finding the Fourth Proportional to 21,364.60, 32,039.52 and 8,035.24

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Solution

The fourth proportional to 21,364.60, 32,039.52 and 8,035.24 is: 12,050.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,364.60 : 32,039.52 = 8,035.24 : x
  2. Step 2: Convert to fraction form
    21,364.60/32,039.52 = 8,035.24/x
  3. Step 3: Cross multiply
    21,364.60x = 32,039.52 × 8,035.24
  4. Step 4: Simplify right side
    21,364.60x = 257,445,232.68
  5. Step 5: Solve for x
    x = 257,445,232.68/21,364.60
  6. Step 6: Final answer
    x = 12,050.08

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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.