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Finding the Fourth Proportional to 17,087.60, 25,669.80 and 16,434.80

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Solution

The fourth proportional to 17,087.60, 25,669.80 and 16,434.80 is: 24,689.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,087.60 : 25,669.80 = 16,434.80 : x
  2. Step 2: Convert to fraction form
    17,087.60/25,669.80 = 16,434.80/x
  3. Step 3: Cross multiply
    17,087.60x = 25,669.80 × 16,434.80
  4. Step 4: Simplify right side
    17,087.60x = 421,878,029.04
  5. Step 5: Solve for x
    x = 421,878,029.04/17,087.60
  6. Step 6: Final answer
    x = 24,689.13

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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.