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Finding the Fourth Proportional to 35,391.52, 48,842.08 and 20,285.92

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Solution

The fourth proportional to 35,391.52, 48,842.08 and 20,285.92 is: 27,995.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,391.52 : 48,842.08 = 20,285.92 : x
  2. Step 2: Convert to fraction form
    35,391.52/48,842.08 = 20,285.92/x
  3. Step 3: Cross multiply
    35,391.52x = 48,842.08 × 20,285.92
  4. Step 4: Simplify right side
    35,391.52x = 990,806,527.51
  5. Step 5: Solve for x
    x = 990,806,527.51/35,391.52
  6. Step 6: Final answer
    x = 27,995.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.