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Finding the Fourth Proportional to 53,952.44, 80,929.40 and 20,674.20

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Solution

The fourth proportional to 53,952.44, 80,929.40 and 20,674.20 is: 31,011.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,952.44 : 80,929.40 = 20,674.20 : x
  2. Step 2: Convert to fraction form
    53,952.44/80,929.40 = 20,674.20/x
  3. Step 3: Cross multiply
    53,952.44x = 80,929.40 × 20,674.20
  4. Step 4: Simplify right side
    53,952.44x = 1,673,150,601.48
  5. Step 5: Solve for x
    x = 1,673,150,601.48/53,952.44
  6. Step 6: Final answer
    x = 31,011.58

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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.