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Finding the Fourth Proportional to 52,969.40, 79,454.02 and 13,526.54

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Solution

The fourth proportional to 52,969.40, 79,454.02 and 13,526.54 is: 20,289.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,969.40 : 79,454.02 = 13,526.54 : x
  2. Step 2: Convert to fraction form
    52,969.40/79,454.02 = 13,526.54/x
  3. Step 3: Cross multiply
    52,969.40x = 79,454.02 × 13,526.54
  4. Step 4: Simplify right side
    52,969.40x = 1,074,737,979.69
  5. Step 5: Solve for x
    x = 1,074,737,979.69/52,969.40
  6. Step 6: Final answer
    x = 20,289.79

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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.