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Finding the Fourth Proportional to 8,566.51, 12,840.33 and 5,603.73

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Solution

The fourth proportional to 8,566.51, 12,840.33 and 5,603.73 is: 8,399.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,566.51 : 12,840.33 = 5,603.73 : x
  2. Step 2: Convert to fraction form
    8,566.51/12,840.33 = 5,603.73/x
  3. Step 3: Cross multiply
    8,566.51x = 12,840.33 × 5,603.73
  4. Step 4: Simplify right side
    8,566.51x = 71,953,742.43
  5. Step 5: Solve for x
    x = 71,953,742.43/8,566.51
  6. Step 6: Final answer
    x = 8,399.42

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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.