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Finding the Fourth Proportional to 51,608.40, 77,339.70 and 36,007.80

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Solution

The fourth proportional to 51,608.40, 77,339.70 and 36,007.80 is: 53,960.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,608.40 : 77,339.70 = 36,007.80 : x
  2. Step 2: Convert to fraction form
    51,608.40/77,339.70 = 36,007.80/x
  3. Step 3: Cross multiply
    51,608.40x = 77,339.70 × 36,007.80
  4. Step 4: Simplify right side
    51,608.40x = 2,784,832,449.66
  5. Step 5: Solve for x
    x = 2,784,832,449.66/51,608.40
  6. Step 6: Final answer
    x = 53,960.84

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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.