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Finding the Fourth Proportional to 9,381.55, 12,933.07 and 5,794.11

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Solution

The fourth proportional to 9,381.55, 12,933.07 and 5,794.11 is: 7,987.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,381.55 : 12,933.07 = 5,794.11 : x
  2. Step 2: Convert to fraction form
    9,381.55/12,933.07 = 5,794.11/x
  3. Step 3: Cross multiply
    9,381.55x = 12,933.07 × 5,794.11
  4. Step 4: Simplify right side
    9,381.55x = 74,935,630.22
  5. Step 5: Solve for x
    x = 74,935,630.22/9,381.55
  6. Step 6: Final answer
    x = 7,987.55

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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.