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Finding the Fourth Proportional to 5,726.48, 8,590.48 and 2,216.40

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Solution

The fourth proportional to 5,726.48, 8,590.48 and 2,216.40 is: 3,324.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,726.48 : 8,590.48 = 2,216.40 : x
  2. Step 2: Convert to fraction form
    5,726.48/8,590.48 = 2,216.40/x
  3. Step 3: Cross multiply
    5,726.48x = 8,590.48 × 2,216.40
  4. Step 4: Simplify right side
    5,726.48x = 19,039,939.87
  5. Step 5: Solve for x
    x = 19,039,939.87/5,726.48
  6. Step 6: Final answer
    x = 3,324.89

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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.