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Finding the Fourth Proportional to 35,469.72, 53,212.36 and 10,511.72

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Solution

The fourth proportional to 35,469.72, 53,212.36 and 10,511.72 is: 15,769.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,469.72 : 53,212.36 = 10,511.72 : x
  2. Step 2: Convert to fraction form
    35,469.72/53,212.36 = 10,511.72/x
  3. Step 3: Cross multiply
    35,469.72x = 53,212.36 × 10,511.72
  4. Step 4: Simplify right side
    35,469.72x = 559,353,376.30
  5. Step 5: Solve for x
    x = 559,353,376.30/35,469.72
  6. Step 6: Final answer
    x = 15,769.89

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1.5x scale

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.