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Finding the Fourth Proportional to 17,951.80, 26,925.80 and 4,805.50

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Solution

The fourth proportional to 17,951.80, 26,925.80 and 4,805.50 is: 7,207.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,951.80 : 26,925.80 = 4,805.50 : x
  2. Step 2: Convert to fraction form
    17,951.80/26,925.80 = 4,805.50/x
  3. Step 3: Cross multiply
    17,951.80x = 26,925.80 × 4,805.50
  4. Step 4: Simplify right side
    17,951.80x = 129,391,931.90
  5. Step 5: Solve for x
    x = 129,391,931.90/17,951.80
  6. Step 6: Final answer
    x = 7,207.74

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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.