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Finding the Fourth Proportional to 13,353.57, 20,051.19 and 12,762.05

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Solution

The fourth proportional to 13,353.57, 20,051.19 and 12,762.05 is: 19,162.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,353.57 : 20,051.19 = 12,762.05 : x
  2. Step 2: Convert to fraction form
    13,353.57/20,051.19 = 12,762.05/x
  3. Step 3: Cross multiply
    13,353.57x = 20,051.19 × 12,762.05
  4. Step 4: Simplify right side
    13,353.57x = 255,894,189.08
  5. Step 5: Solve for x
    x = 255,894,189.08/13,353.57
  6. Step 6: Final answer
    x = 19,162.98

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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.