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Finding the Fourth Proportional to 8,673.72, 13,012.50 and 4,776.12

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Solution

The fourth proportional to 8,673.72, 13,012.50 and 4,776.12 is: 7,165.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,673.72 : 13,012.50 = 4,776.12 : x
  2. Step 2: Convert to fraction form
    8,673.72/13,012.50 = 4,776.12/x
  3. Step 3: Cross multiply
    8,673.72x = 13,012.50 × 4,776.12
  4. Step 4: Simplify right side
    8,673.72x = 62,149,261.50
  5. Step 5: Solve for x
    x = 62,149,261.50/8,673.72
  6. Step 6: Final answer
    x = 7,165.24

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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.