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Finding the Fourth Proportional to 53,475.20, 80,212.80 and 36,886.40

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Solution

The fourth proportional to 53,475.20, 80,212.80 and 36,886.40 is: 55,329.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,475.20 : 80,212.80 = 36,886.40 : x
  2. Step 2: Convert to fraction form
    53,475.20/80,212.80 = 36,886.40/x
  3. Step 3: Cross multiply
    53,475.20x = 80,212.80 × 36,886.40
  4. Step 4: Simplify right side
    53,475.20x = 2,958,761,425.92
  5. Step 5: Solve for x
    x = 2,958,761,425.92/53,475.20
  6. Step 6: Final answer
    x = 55,329.60

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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.