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Finding the Fourth Proportional to 51,568.25, 77,339.84 and 21,566.25

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Solution

The fourth proportional to 51,568.25, 77,339.84 and 21,566.25 is: 32,344.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,568.25 : 77,339.84 = 21,566.25 : x
  2. Step 2: Convert to fraction form
    51,568.25/77,339.84 = 21,566.25/x
  3. Step 3: Cross multiply
    51,568.25x = 77,339.84 × 21,566.25
  4. Step 4: Simplify right side
    51,568.25x = 1,667,930,216.57
  5. Step 5: Solve for x
    x = 1,667,930,216.57/51,568.25
  6. Step 6: Final answer
    x = 32,344.13

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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.