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Finding the Fourth Proportional to 8,809.77, 13,205.68 and 5,525.16

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Solution

The fourth proportional to 8,809.77, 13,205.68 and 5,525.16 is: 8,282.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,809.77 : 13,205.68 = 5,525.16 : x
  2. Step 2: Convert to fraction form
    8,809.77/13,205.68 = 5,525.16/x
  3. Step 3: Cross multiply
    8,809.77x = 13,205.68 × 5,525.16
  4. Step 4: Simplify right side
    8,809.77x = 72,963,494.91
  5. Step 5: Solve for x
    x = 72,963,494.91/8,809.77
  6. Step 6: Final answer
    x = 8,282.11

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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.