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Finding the Fourth Proportional to 5,803.61, 8,706.72 and 1,908.05

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Solution

The fourth proportional to 5,803.61, 8,706.72 and 1,908.05 is: 2,862.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,803.61 : 8,706.72 = 1,908.05 : x
  2. Step 2: Convert to fraction form
    5,803.61/8,706.72 = 1,908.05/x
  3. Step 3: Cross multiply
    5,803.61x = 8,706.72 × 1,908.05
  4. Step 4: Simplify right side
    5,803.61x = 16,612,813.56
  5. Step 5: Solve for x
    x = 16,612,813.56/5,803.61
  6. Step 6: Final answer
    x = 2,862.50

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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.