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Finding the Fourth Proportional to 29,445.60, 44,168.40 and 9,719.40

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Solution

The fourth proportional to 29,445.60, 44,168.40 and 9,719.40 is: 14,579.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,445.60 : 44,168.40 = 9,719.40 : x
  2. Step 2: Convert to fraction form
    29,445.60/44,168.40 = 9,719.40/x
  3. Step 3: Cross multiply
    29,445.60x = 44,168.40 × 9,719.40
  4. Step 4: Simplify right side
    29,445.60x = 429,290,346.96
  5. Step 5: Solve for x
    x = 429,290,346.96/29,445.60
  6. Step 6: Final answer
    x = 14,579.10

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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.