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Finding the Fourth Proportional to 21,504.52, 32,244.54 and 7,457.32

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Solution

The fourth proportional to 21,504.52, 32,244.54 and 7,457.32 is: 11,181.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,504.52 : 32,244.54 = 7,457.32 : x
  2. Step 2: Convert to fraction form
    21,504.52/32,244.54 = 7,457.32/x
  3. Step 3: Cross multiply
    21,504.52x = 32,244.54 × 7,457.32
  4. Step 4: Simplify right side
    21,504.52x = 240,457,853.03
  5. Step 5: Solve for x
    x = 240,457,853.03/21,504.52
  6. Step 6: Final answer
    x = 11,181.74

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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.