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Finding the Fourth Proportional to 17,685.63, 26,532.63 and 5,205.69

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Solution

The fourth proportional to 17,685.63, 26,532.63 and 5,205.69 is: 7,809.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,685.63 : 26,532.63 = 5,205.69 : x
  2. Step 2: Convert to fraction form
    17,685.63/26,532.63 = 5,205.69/x
  3. Step 3: Cross multiply
    17,685.63x = 26,532.63 × 5,205.69
  4. Step 4: Simplify right side
    17,685.63x = 138,120,646.66
  5. Step 5: Solve for x
    x = 138,120,646.66/17,685.63
  6. Step 6: Final answer
    x = 7,809.77

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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.