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Finding the Fourth Proportional to 3,726.76, 5,590.14 and 1,646.32

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Solution

The fourth proportional to 3,726.76, 5,590.14 and 1,646.32 is: 2,469.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,726.76 : 5,590.14 = 1,646.32 : x
  2. Step 2: Convert to fraction form
    3,726.76/5,590.14 = 1,646.32/x
  3. Step 3: Cross multiply
    3,726.76x = 5,590.14 × 1,646.32
  4. Step 4: Simplify right side
    3,726.76x = 9,203,159.28
  5. Step 5: Solve for x
    x = 9,203,159.28/3,726.76
  6. Step 6: Final answer
    x = 2,469.48

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Similar ratio
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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.