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Finding the Fourth Proportional to 8,795.94, 13,192.47 and 2,638.50

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Solution

The fourth proportional to 8,795.94, 13,192.47 and 2,638.50 is: 3,957.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,795.94 : 13,192.47 = 2,638.50 : x
  2. Step 2: Convert to fraction form
    8,795.94/13,192.47 = 2,638.50/x
  3. Step 3: Cross multiply
    8,795.94x = 13,192.47 × 2,638.50
  4. Step 4: Simplify right side
    8,795.94x = 34,808,332.10
  5. Step 5: Solve for x
    x = 34,808,332.10/8,795.94
  6. Step 6: Final answer
    x = 3,957.32

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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.