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Finding the Fourth Proportional to 19,336.60, 29,008.90 and 11,020.60

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Solution

The fourth proportional to 19,336.60, 29,008.90 and 11,020.60 is: 16,533.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,336.60 : 29,008.90 = 11,020.60 : x
  2. Step 2: Convert to fraction form
    19,336.60/29,008.90 = 11,020.60/x
  3. Step 3: Cross multiply
    19,336.60x = 29,008.90 × 11,020.60
  4. Step 4: Simplify right side
    19,336.60x = 319,695,483.34
  5. Step 5: Solve for x
    x = 319,695,483.34/19,336.60
  6. Step 6: Final answer
    x = 16,533.18

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.