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Finding the Fourth Proportional to 9,055.90, 12,502.96 and 7,381.33

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Solution

The fourth proportional to 9,055.90, 12,502.96 and 7,381.33 is: 10,190.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,055.90 : 12,502.96 = 7,381.33 : x
  2. Step 2: Convert to fraction form
    9,055.90/12,502.96 = 7,381.33/x
  3. Step 3: Cross multiply
    9,055.90x = 12,502.96 × 7,381.33
  4. Step 4: Simplify right side
    9,055.90x = 92,288,424.03
  5. Step 5: Solve for x
    x = 92,288,424.03/9,055.90
  6. Step 6: Final answer
    x = 10,190.97

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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.