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Finding the Fourth Proportional to 53,671.70, 80,512.06 and 14,228.30

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Solution

The fourth proportional to 53,671.70, 80,512.06 and 14,228.30 is: 21,343.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,671.70 : 80,512.06 = 14,228.30 : x
  2. Step 2: Convert to fraction form
    53,671.70/80,512.06 = 14,228.30/x
  3. Step 3: Cross multiply
    53,671.70x = 80,512.06 × 14,228.30
  4. Step 4: Simplify right side
    53,671.70x = 1,145,549,743.30
  5. Step 5: Solve for x
    x = 1,145,549,743.30/53,671.70
  6. Step 6: Final answer
    x = 21,343.65

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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.