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Finding the Fourth Proportional to 29,402.20, 44,103.30 and 19,509.40

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Solution

The fourth proportional to 29,402.20, 44,103.30 and 19,509.40 is: 29,264.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,402.20 : 44,103.30 = 19,509.40 : x
  2. Step 2: Convert to fraction form
    29,402.20/44,103.30 = 19,509.40/x
  3. Step 3: Cross multiply
    29,402.20x = 44,103.30 × 19,509.40
  4. Step 4: Simplify right side
    29,402.20x = 860,428,921.02
  5. Step 5: Solve for x
    x = 860,428,921.02/29,402.20
  6. Step 6: Final answer
    x = 29,264.10

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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.