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Finding the Fourth Proportional to 8,762.67, 12,092.16 and 4,985.64

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Solution

The fourth proportional to 8,762.67, 12,092.16 and 4,985.64 is: 6,880.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,762.67 : 12,092.16 = 4,985.64 : x
  2. Step 2: Convert to fraction form
    8,762.67/12,092.16 = 4,985.64/x
  3. Step 3: Cross multiply
    8,762.67x = 12,092.16 × 4,985.64
  4. Step 4: Simplify right side
    8,762.67x = 60,287,156.58
  5. Step 5: Solve for x
    x = 60,287,156.58/8,762.67
  6. Step 6: Final answer
    x = 6,880.00

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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.