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Finding the Fourth Proportional to 7,372.13, 11,058.19 and 1,900.13

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Solution

The fourth proportional to 7,372.13, 11,058.19 and 1,900.13 is: 2,850.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,372.13 : 11,058.19 = 1,900.13 : x
  2. Step 2: Convert to fraction form
    7,372.13/11,058.19 = 1,900.13/x
  3. Step 3: Cross multiply
    7,372.13x = 11,058.19 × 1,900.13
  4. Step 4: Simplify right side
    7,372.13x = 21,011,938.52
  5. Step 5: Solve for x
    x = 21,011,938.52/7,372.13
  6. Step 6: Final answer
    x = 2,850.19

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Half scale
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Double scale
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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.