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Finding the Fourth Proportional to 5,153, 7,111.18 and 3,058.92

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Solution

The fourth proportional to 5,153, 7,111.18 and 3,058.92 is: 4,221.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,153 : 7,111.18 = 3,058.92 : x
  2. Step 2: Convert to fraction form
    5,153/7,111.18 = 3,058.92/x
  3. Step 3: Cross multiply
    5,153x = 7,111.18 × 3,058.92
  4. Step 4: Simplify right side
    5,153x = 21,752,530.73
  5. Step 5: Solve for x
    x = 21,752,530.73/5,153
  6. Step 6: Final answer
    x = 4,221.33

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.