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Finding the Fourth Proportional to 6,747, 10,125.72 and 4,681.50

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Solution

The fourth proportional to 6,747, 10,125.72 and 4,681.50 is: 7,025.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,747 : 10,125.72 = 4,681.50 : x
  2. Step 2: Convert to fraction form
    6,747/10,125.72 = 4,681.50/x
  3. Step 3: Cross multiply
    6,747x = 10,125.72 × 4,681.50
  4. Step 4: Simplify right side
    6,747x = 47,403,558.18
  5. Step 5: Solve for x
    x = 47,403,558.18/6,747
  6. Step 6: Final answer
    x = 7,025.87

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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.