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Finding the Fourth Proportional to 8,762.80, 12,092.70 and 4,784

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Solution

The fourth proportional to 8,762.80, 12,092.70 and 4,784 is: 6,601.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,762.80 : 12,092.70 = 4,784 : x
  2. Step 2: Convert to fraction form
    8,762.80/12,092.70 = 4,784/x
  3. Step 3: Cross multiply
    8,762.80x = 12,092.70 × 4,784
  4. Step 4: Simplify right side
    8,762.80x = 57,851,476.80
  5. Step 5: Solve for x
    x = 57,851,476.80/8,762.80
  6. Step 6: Final answer
    x = 6,601.94

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.