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Finding the Fourth Proportional to 9,574.94, 13,213.29 and 5,383.19

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Solution

The fourth proportional to 9,574.94, 13,213.29 and 5,383.19 is: 7,428.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,574.94 : 13,213.29 = 5,383.19 : x
  2. Step 2: Convert to fraction form
    9,574.94/13,213.29 = 5,383.19/x
  3. Step 3: Cross multiply
    9,574.94x = 13,213.29 × 5,383.19
  4. Step 4: Simplify right side
    9,574.94x = 71,129,683.63
  5. Step 5: Solve for x
    x = 71,129,683.63/9,574.94
  6. Step 6: Final answer
    x = 7,428.73

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.