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Finding the Fourth Proportional to 35,809.76, 53,662.80 and 20,194.16

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Solution

The fourth proportional to 35,809.76, 53,662.80 and 20,194.16 is: 30,262.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,809.76 : 53,662.80 = 20,194.16 : x
  2. Step 2: Convert to fraction form
    35,809.76/53,662.80 = 20,194.16/x
  3. Step 3: Cross multiply
    35,809.76x = 53,662.80 × 20,194.16
  4. Step 4: Simplify right side
    35,809.76x = 1,083,675,169.25
  5. Step 5: Solve for x
    x = 1,083,675,169.25/35,809.76
  6. Step 6: Final answer
    x = 30,262.01

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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.