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Finding the Fourth Proportional to 5,611.63, 8,381.91 and 4,366.07

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Solution

The fourth proportional to 5,611.63, 8,381.91 and 4,366.07 is: 6,521.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,611.63 : 8,381.91 = 4,366.07 : x
  2. Step 2: Convert to fraction form
    5,611.63/8,381.91 = 4,366.07/x
  3. Step 3: Cross multiply
    5,611.63x = 8,381.91 × 4,366.07
  4. Step 4: Simplify right side
    5,611.63x = 36,596,011.69
  5. Step 5: Solve for x
    x = 36,596,011.69/5,611.63
  6. Step 6: Final answer
    x = 6,521.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.