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Finding the Fourth Proportional to 56,172.32, 84,252.90 and 14,619.32

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Solution

The fourth proportional to 56,172.32, 84,252.90 and 14,619.32 is: 21,927.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,172.32 : 84,252.90 = 14,619.32 : x
  2. Step 2: Convert to fraction form
    56,172.32/84,252.90 = 14,619.32/x
  3. Step 3: Cross multiply
    56,172.32x = 84,252.90 × 14,619.32
  4. Step 4: Simplify right side
    56,172.32x = 1,231,720,106.03
  5. Step 5: Solve for x
    x = 1,231,720,106.03/56,172.32
  6. Step 6: Final answer
    x = 21,927.53

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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.