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Finding the Fourth Proportional to 21,503.04, 32,255.04 and 5,921.28

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Solution

The fourth proportional to 21,503.04, 32,255.04 and 5,921.28 is: 8,882.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,503.04 : 32,255.04 = 5,921.28 : x
  2. Step 2: Convert to fraction form
    21,503.04/32,255.04 = 5,921.28/x
  3. Step 3: Cross multiply
    21,503.04x = 32,255.04 × 5,921.28
  4. Step 4: Simplify right side
    21,503.04x = 190,991,123.25
  5. Step 5: Solve for x
    x = 190,991,123.25/21,503.04
  6. Step 6: Final answer
    x = 8,882.05

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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.