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Finding the Fourth Proportional to 43,483.34, 65,235.14 and 13,898.90

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Solution

The fourth proportional to 43,483.34, 65,235.14 and 13,898.90 is: 20,851.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,483.34 : 65,235.14 = 13,898.90 : x
  2. Step 2: Convert to fraction form
    43,483.34/65,235.14 = 13,898.90/x
  3. Step 3: Cross multiply
    43,483.34x = 65,235.14 × 13,898.90
  4. Step 4: Simplify right side
    43,483.34x = 906,696,687.35
  5. Step 5: Solve for x
    x = 906,696,687.35/43,483.34
  6. Step 6: Final answer
    x = 20,851.59

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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.