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Finding the Fourth Proportional to 5,302.91, 7,951.65 and 2,805.45

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Solution

The fourth proportional to 5,302.91, 7,951.65 and 2,805.45 is: 4,206.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,302.91 : 7,951.65 = 2,805.45 : x
  2. Step 2: Convert to fraction form
    5,302.91/7,951.65 = 2,805.45/x
  3. Step 3: Cross multiply
    5,302.91x = 7,951.65 × 2,805.45
  4. Step 4: Simplify right side
    5,302.91x = 22,307,916.15
  5. Step 5: Solve for x
    x = 22,307,916.15/5,302.91
  6. Step 6: Final answer
    x = 4,206.73

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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.