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Finding the Fourth Proportional to 35,403.92, 53,105.88 and 13,219.03

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Solution

The fourth proportional to 35,403.92, 53,105.88 and 13,219.03 is: 19,828.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,403.92 : 53,105.88 = 13,219.03 : x
  2. Step 2: Convert to fraction form
    35,403.92/53,105.88 = 13,219.03/x
  3. Step 3: Cross multiply
    35,403.92x = 53,105.88 × 13,219.03
  4. Step 4: Simplify right side
    35,403.92x = 702,007,889.27
  5. Step 5: Solve for x
    x = 702,007,889.27/35,403.92
  6. Step 6: Final answer
    x = 19,828.54

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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.