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Finding the Fourth Proportional to 9,591.79, 14,382.78 and 4,393.21

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Solution

The fourth proportional to 9,591.79, 14,382.78 and 4,393.21 is: 6,587.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,591.79 : 14,382.78 = 4,393.21 : x
  2. Step 2: Convert to fraction form
    9,591.79/14,382.78 = 4,393.21/x
  3. Step 3: Cross multiply
    9,591.79x = 14,382.78 × 4,393.21
  4. Step 4: Simplify right side
    9,591.79x = 63,186,572.92
  5. Step 5: Solve for x
    x = 63,186,572.92/9,591.79
  6. Step 6: Final answer
    x = 6,587.57

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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.