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Finding the Fourth Proportional to 19,410.60, 29,051.10 and 17,077.80

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Solution

The fourth proportional to 19,410.60, 29,051.10 and 17,077.80 is: 25,559.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,410.60 : 29,051.10 = 17,077.80 : x
  2. Step 2: Convert to fraction form
    19,410.60/29,051.10 = 17,077.80/x
  3. Step 3: Cross multiply
    19,410.60x = 29,051.10 × 17,077.80
  4. Step 4: Simplify right side
    19,410.60x = 496,128,875.58
  5. Step 5: Solve for x
    x = 496,128,875.58/19,410.60
  6. Step 6: Final answer
    x = 25,559.69

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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.