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Finding the Fourth Proportional to 19,374.80, 29,097.40 and 16,955.60

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Solution

The fourth proportional to 19,374.80, 29,097.40 and 16,955.60 is: 25,464.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,374.80 : 29,097.40 = 16,955.60 : x
  2. Step 2: Convert to fraction form
    19,374.80/29,097.40 = 16,955.60/x
  3. Step 3: Cross multiply
    19,374.80x = 29,097.40 × 16,955.60
  4. Step 4: Simplify right side
    19,374.80x = 493,363,875.44
  5. Step 5: Solve for x
    x = 493,363,875.44/19,374.80
  6. Step 6: Final answer
    x = 25,464.20

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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.