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Finding the Fourth Proportional to 43,283.79, 64,932.98 and 13,709.88

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Solution

The fourth proportional to 43,283.79, 64,932.98 and 13,709.88 is: 20,567.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,283.79 : 64,932.98 = 13,709.88 : x
  2. Step 2: Convert to fraction form
    43,283.79/64,932.98 = 13,709.88/x
  3. Step 3: Cross multiply
    43,283.79x = 64,932.98 × 13,709.88
  4. Step 4: Simplify right side
    43,283.79x = 890,223,295.29
  5. Step 5: Solve for x
    x = 890,223,295.29/43,283.79
  6. Step 6: Final answer
    x = 20,567.13

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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.