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Finding the Fourth Proportional to 5,359.19, 7,396.19 and 3,090.59

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Solution

The fourth proportional to 5,359.19, 7,396.19 and 3,090.59 is: 4,265.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,359.19 : 7,396.19 = 3,090.59 : x
  2. Step 2: Convert to fraction form
    5,359.19/7,396.19 = 3,090.59/x
  3. Step 3: Cross multiply
    5,359.19x = 7,396.19 × 3,090.59
  4. Step 4: Simplify right side
    5,359.19x = 22,858,569.05
  5. Step 5: Solve for x
    x = 22,858,569.05/5,359.19
  6. Step 6: Final answer
    x = 4,265.30

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Half scale
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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.