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Finding the Fourth Proportional to 8,762.59, 12,092.64 and 4,986.30

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Solution

The fourth proportional to 8,762.59, 12,092.64 and 4,986.30 is: 6,881.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,762.59 : 12,092.64 = 4,986.30 : x
  2. Step 2: Convert to fraction form
    8,762.59/12,092.64 = 4,986.30/x
  3. Step 3: Cross multiply
    8,762.59x = 12,092.64 × 4,986.30
  4. Step 4: Simplify right side
    8,762.59x = 60,297,530.83
  5. Step 5: Solve for x
    x = 60,297,530.83/8,762.59
  6. Step 6: Final answer
    x = 6,881.25

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1.5x scale

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.