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Finding the Fourth Proportional to 7,673.50, 10,590 and 4,689.92

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Solution

The fourth proportional to 7,673.50, 10,590 and 4,689.92 is: 6,472.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,673.50 : 10,590 = 4,689.92 : x
  2. Step 2: Convert to fraction form
    7,673.50/10,590 = 4,689.92/x
  3. Step 3: Cross multiply
    7,673.50x = 10,590 × 4,689.92
  4. Step 4: Simplify right side
    7,673.50x = 49,666,252.80
  5. Step 5: Solve for x
    x = 49,666,252.80/7,673.50
  6. Step 6: Final answer
    x = 6,472.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.