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Finding the Fourth Proportional to 8,713.42, 13,075.24 and 3,448.92

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Solution

The fourth proportional to 8,713.42, 13,075.24 and 3,448.92 is: 5,175.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,713.42 : 13,075.24 = 3,448.92 : x
  2. Step 2: Convert to fraction form
    8,713.42/13,075.24 = 3,448.92/x
  3. Step 3: Cross multiply
    8,713.42x = 13,075.24 × 3,448.92
  4. Step 4: Simplify right side
    8,713.42x = 45,095,456.74
  5. Step 5: Solve for x
    x = 45,095,456.74/8,713.42
  6. Step 6: Final answer
    x = 5,175.40

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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.