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Finding the Fourth Proportional to 8,959.65, 13,436.10 and 2,717.84

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Solution

The fourth proportional to 8,959.65, 13,436.10 and 2,717.84 is: 4,075.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,959.65 : 13,436.10 = 2,717.84 : x
  2. Step 2: Convert to fraction form
    8,959.65/13,436.10 = 2,717.84/x
  3. Step 3: Cross multiply
    8,959.65x = 13,436.10 × 2,717.84
  4. Step 4: Simplify right side
    8,959.65x = 36,517,102.84
  5. Step 5: Solve for x
    x = 36,517,102.84/8,959.65
  6. Step 6: Final answer
    x = 4,075.73

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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.