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Finding the Fourth Proportional to 46,564.88, 69,863.72 and 20,266.20

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Solution

The fourth proportional to 46,564.88, 69,863.72 and 20,266.20 is: 30,406.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,564.88 : 69,863.72 = 20,266.20 : x
  2. Step 2: Convert to fraction form
    46,564.88/69,863.72 = 20,266.20/x
  3. Step 3: Cross multiply
    46,564.88x = 69,863.72 × 20,266.20
  4. Step 4: Simplify right side
    46,564.88x = 1,415,872,020.93
  5. Step 5: Solve for x
    x = 1,415,872,020.93/46,564.88
  6. Step 6: Final answer
    x = 30,406.44

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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.