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Finding the Fourth Proportional to 17,060.40, 25,561.80 and 8,276.40

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Solution

The fourth proportional to 17,060.40, 25,561.80 and 8,276.40 is: 12,400.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,060.40 : 25,561.80 = 8,276.40 : x
  2. Step 2: Convert to fraction form
    17,060.40/25,561.80 = 8,276.40/x
  3. Step 3: Cross multiply
    17,060.40x = 25,561.80 × 8,276.40
  4. Step 4: Simplify right side
    17,060.40x = 211,559,681.52
  5. Step 5: Solve for x
    x = 211,559,681.52/17,060.40
  6. Step 6: Final answer
    x = 12,400.63

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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.