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Finding the Fourth Proportional to 8,409.68, 12,616.14 and 4,716.08

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Solution

The fourth proportional to 8,409.68, 12,616.14 and 4,716.08 is: 7,075.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,409.68 : 12,616.14 = 4,716.08 : x
  2. Step 2: Convert to fraction form
    8,409.68/12,616.14 = 4,716.08/x
  3. Step 3: Cross multiply
    8,409.68x = 12,616.14 × 4,716.08
  4. Step 4: Simplify right side
    8,409.68x = 59,498,725.53
  5. Step 5: Solve for x
    x = 59,498,725.53/8,409.68
  6. Step 6: Final answer
    x = 7,075.03

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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.