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Finding the Fourth Proportional to 53,529.28, 80,270.64 and 28,563.80

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Solution

The fourth proportional to 53,529.28, 80,270.64 and 28,563.80 is: 42,833.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,529.28 : 80,270.64 = 28,563.80 : x
  2. Step 2: Convert to fraction form
    53,529.28/80,270.64 = 28,563.80/x
  3. Step 3: Cross multiply
    53,529.28x = 80,270.64 × 28,563.80
  4. Step 4: Simplify right side
    53,529.28x = 2,292,834,506.83
  5. Step 5: Solve for x
    x = 2,292,834,506.83/53,529.28
  6. Step 6: Final answer
    x = 42,833.28

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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.