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Finding the Fourth Proportional to 19,627.71, 29,421.11 and 8,525.01

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Solution

The fourth proportional to 19,627.71, 29,421.11 and 8,525.01 is: 12,778.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,627.71 : 29,421.11 = 8,525.01 : x
  2. Step 2: Convert to fraction form
    19,627.71/29,421.11 = 8,525.01/x
  3. Step 3: Cross multiply
    19,627.71x = 29,421.11 × 8,525.01
  4. Step 4: Simplify right side
    19,627.71x = 250,815,214.34
  5. Step 5: Solve for x
    x = 250,815,214.34/19,627.71
  6. Step 6: Final answer
    x = 12,778.63

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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.